Top 5 — Ranked by Evidence
Strong
Citrus Bergamot (Citrus bergamia)
Blood glucose and insulin resistance improvement
500–1,500 mg/day standardized BPF; lipid-lowering studies typically use 500 mg twice
Very Strong
Niacin
May Improve Blood Sugar Control
14–16 mg/day (RDA); lipid-lowering: 1,500–3,000 mg/day (extended-release niacin, under
Strong
Flaxseed / Flaxseed Oil (Linum usitatissimum)
Blood sugar: limited and indirect evidence
1–2 tablespoons (10–20g) ground flaxseed/day; flaxseed oil: 1–2 tablespoons/day
Very Strong
Psyllium Husk (Plantago ovata)
Blood sugar and postprandial glucose blunting
5–15 g/day psyllium husk (1–3 teaspoons); FDA cholesterol claim requires ≥7 g/day;
Moderate
Salacia (Salacinol)
Reduced postprandial glucose spikes
T2D (Kajimoto): 240 mg/day S. reticulata × 6 wk. NR-Salacia: 250-500 mg with carb
📈 Fastest Growing Metabolic Health Ingredients
Branded ingredients seeing rapid growth in formulator adoption and clinical research in 2024–2026.
Trending
Moderate
Berberine
Blood Sugar Regulation
500 to 1,500 mg per day, usually split into 2 or 3 doses with meals to reduce digestive upset.…
Trending
Limited
DeltaGold® (Annatto Tocotrienols — American River Nutrition)
Triglycerides: What the Cited Evidence Shows
430 or 860 mg/day of the annatto extract, delivering roughly 300 or 600 mg/day tocotrienol, in…
Trending
Very Strong
Psyllium Husk (Plantago ovata)
Blood sugar and postprandial glucose blunting
5–15 g/day psyllium husk (1–3 teaspoons); FDA cholesterol claim requires ≥7 g/day; take with 8…
🔬 Future Metabolic Health Ingredients to Watch
Lower current evidence but active research underway — these may become top picks within 2–3 years.
Watch
Moderate
Banaba Leaf (Lagerstroemia speciosa)
Fasting Blood Glucose Reduction
32-48 mg/day extract at 1% corosolic acid (0.32-0.48 mg corosolic acid/day); higher: up to 10…
Watch
Moderate
Salacia (Salacinol)
Reduced postprandial glucose spikes
240 mg/day S. reticulata; 500–1,000 mg S. oblonga; standard 200–1,000 mg with largest carb…
Watch
Moderate
Resveratrol
Blood sugar regulation
150–500 mg/day trans-resveratrol; bioavailability enhanced with piperine or liposomal…
Watch
Moderate
NūGensia™ (Akkermansia muciniphila Postbiotic)
Improved glucose and metabolic markers
Manufacturer trial: ~10 billion CFU/day for 60 days. The landmark Akkermansia RCT used ~10…
Recommended Metabolic Health Products
Heads up: NutraSmarts may earn a commission from purchases made through these links, at no extra cost to you. We curate these picks based on the same evidence we cite throughout the page. Full disclosure.
Real products featuring the best-evidenced metabolic health ingredients ranked above - chosen for clinically-studied forms and doses, third-party testing, and value. Match the supplement to your specific need.
Best for blood-sugar & metabolic support
Amazon →
Thorne Berberine-500
500 mg berberine HCl/capsule, 60 ct
Clean single-ingredient berberine at the studied 500 mg dose from a clinician-trusted, four-times-tested brand.
Best for true Ceylon cinnamon value
Amazon →
Nutricost Organic Ceylon Cinnamon
1,200 mg per 2-cap serving, 150 ct
Organic true Ceylon (not cassia) cinnamon, third-party tested and non-GMO, at an affordable per-serving cost.
Best for carbohydrate-metabolism support
Amazon →
Thorne Chromium Picolinate
500 mcg chromium (picolinate)/capsule, 60 ct
Well-absorbed picolinate form from a third-party-certified brand; simple, additive-light metabolic-support pick.
Best for antioxidant metabolic support
Amazon →
Doctor's Best Alpha-Lipoic Acid 600 mg
600 mg veggie capsules, 60 ct
Full 600 mg ALA per capsule, vegan and non-GMO; a budget-friendly pick that helps regenerate other antioxidants.
All Metabolic Health Ingredients (231)
Strong
Citrus Bergamot (Citrus bergamia)
Blood glucose and insulin resistance improvement
500–1,500 mg/day standardized BPF; lipid-lowering studies typically use 500 mg twice
Very Strong
Niacin
May Improve Blood Sugar Control
14–16 mg/day (RDA); lipid-lowering: 1,500–3,000 mg/day (extended-release niacin, under
Strong
Flaxseed / Flaxseed Oil (Linum usitatissimum)
Blood sugar: limited and indirect evidence
1–2 tablespoons (10–20g) ground flaxseed/day; flaxseed oil: 1–2 tablespoons/day
Very Strong
Psyllium Husk (Plantago ovata)
Blood sugar and postprandial glucose blunting
5–15 g/day psyllium husk (1–3 teaspoons); FDA cholesterol claim requires ≥7 g/day;
Moderate
Salacia (Salacinol)
Reduced postprandial glucose spikes
T2D (Kajimoto): 240 mg/day S. reticulata × 6 wk. NR-Salacia: 250-500 mg with carb
Strong
Resistant Starch
Reduced fasting insulin and HOMA-IR
GUT/MICROBIOME: 15-30 g/day (1-2 tbsp Hi-Maize® or raw potato starch). T2D METABOLIC:
Strong
Cinnamon FenuMat® (Cinnamon + Fenugreek Soft Hydrogel — Akay Bioactives)
Fasting blood glucose reduction (class evidence)
Typical cinnamon clinical doses: 120-500 mg/day standardized extract or 1-3 g/day
Strong
Cinnulin PF® (Water-Soluble Cinnamon Extract — Verdure Sciences)
8.4% fasting blood glucose reduction (12-week clinical trial)
500 mg/day Cinnulin PF — the dose used in the 12-week pivotal RCT. Recommended
Strong
Palatinose™ (Isomaltulose)
Low-glycemic carbohydrate energy
25–75 g per dose in acute glycemic and exercise trials, typically replacing sucrose or
Moderate
Chromium
Blood Sugar Regulation
25–35 mcg/day (AI); blood sugar: 200–1,000 mcg/day chromium picolinate; insulin
Moderate
White Mulberry (Morus alba)
Postprandial Glucose Spike Reduction
LOWN 2017: Reducose® 5% DNJ 250 mg/dose (12.5 mg DNJ) + 50 g maltodextrin. HWANG 2016
Moderate
Black Seed Oil
Blood sugar and HbA1c improvement
Standard cardiometabolic dose: 500-2,000 mg/day cold-pressed black seed oil.
Strong
Glucomannan (Konjac Root Fiber)
Blood sugar and diabetes management
3–4 g/day before meals (1 g three times daily, 30 minutes before meals with 250 mL
Moderate
Allulose (D-Psicose)
Supports healthy blood glucose
Typical study doses range from 5–15 g per meal; larger amounts above 0.4 g/kg body
Moderate
Amla / Indian Gooseberry (Capros®)
Lower fasting blood sugar in randomized trials
250–500 mg/day Capros® standardized extract; traditional amla powder: 3–6 g/day;
Moderate
BioBerb® (Bioavailable Berberine — Saanroo)
Blood sugar: studied in people with type 2 diabetes, using ordinary berberine
Standard berberine clinical dose: 500 mg three times daily with meals (1,500 mg/day
Strong
Alpha Lipoic Acid
Insulin sensitivity
DIABETIC NEUROPATHY: 600 mg/day racemic ALA (SYDNEY 2 + NATHAN 1). T2DM IR: 300
Strong
BarliV™ (Barley Beta-Glucan — Cargill)
Glycemic Control
3 g/day barley beta-glucan (FDA health claim threshold)
Strong
Ginger (Zingiber officinale)
Anti-inflammatory and lipid effects
250–2,000 mg/day dried ginger powder or standardized extract; nausea: 1–1.5 g/day;
Strong
Inositol (Myo-Inositol)
Insulin sensitivity and metabolic markers
2-4 g/day myo-inositol for metabolic and general use. PCOS: 4 g myo-inositol + 100 mg
Strong
Olive Leaf Extract
Blood sugar regulation (modest evidence)
Standard dose: 500-1,000 mg/day standardized olive leaf extract (containing 20-40%
Moderate
Sulforaphane / Glucoraphanin
Cardiovascular and metabolic biomarkers
Standard supplementation: 60-150 mg glucoraphanin with active myrosinase (provides
Strong
Xylitol
Modest calorie and glycemic reduction
Dental caries prevention: 5-10 g/day in chewing gum or candies. Acute otitis media
Moderate
Chromax® (Chromium Picolinate)
Insulin sensitivity: studied mainly in people with type 2 diabetes
200–1,000 mcg/day chromium as Chromax® chromium picolinate; insulin sensitivity:
Moderate
Fenugreek
Blood sugar regulation
500–600 mg/day standardized extract; 5–30 g/day whole seed for glucose effects
Moderate
FenuLife® (Fenugreek Galactomannan — BioActor)
Healthy blood sugar
Commonly a few grams of fenugreek fiber per day with meals.
Strong
BarleyTrim® (Barley Beta-Glucan)
Steadier blood sugar
About 3 grams of barley beta-glucan per day for cholesterol benefit.
Strong
Beta-Glucans (Oat & Yeast-Derived)
Glycemic control — supportive trial evidence
Cholesterol (FDA claim): 3 g/day oat β-glucan. Immune (Wellmune®): 250-500 mg/day
Strong
Manganese
Cofactor role in glucose-metabolism enzymes (biochemical)
1.8–2.3 mg/day (AI for adults); upper limit 11 mg/day; most multivitamins contain 2–5
Strong
Oat Bran (Beta-Glucan)
Reduces post-meal blood sugar spikes
FDA HEALTH CLAIM: ≥3 g beta-glucan/day (~75 g raw oat bran, ~140 g cooked oatmeal).
Strong
Soy Isoflavones (Glycine max)
Blood sugar and metabolic regulation
40–80 mg/day total isoflavones; menopausal symptoms: 50–80 mg/day; bone health: 54–100
Strong
Thiamine
Metabolic Disorders
1.1–1.2 mg/day (RDA); Benfotiamine (fat-soluble form): 150–300 mg/day;
Moderate
Berberine
Blood Sugar Regulation
500–1,500 mg per day, often divided into 2–3 doses taken with meals to improve
Moderate
Inulin
Better Blood Sugar Control
2–10 g/day for prebiotic/gut microbiome effects; gradual dose increase recommended to
Moderate
Banaba Leaf (Lagerstroemia speciosa)
Fasting Blood Glucose Reduction
MOST TRIALS: 32-48 mg/day extract 1% corosolic acid (= 0.32-0.48 mg corosolic
Moderate
D-Chiro-Inositol
Supports Insulin Sensitivity
DCI alone: 600-1,200 mg/day (older trials). Modern 40:1 MI:DCI: 4 g myo-inositol + 100
Moderate
Ellagic Acid
Metabolic syndrome — multiple markers improve together
METABOLIC SYNDROME (Hidalgo-Lozada 2022): 500 mg BID = 1000 mg/day pomegranate 90% EA
Limited
Gencinia® (Coccinia indica / Ivy Gourd Blood Sugar Support — Saanroo)
Fasting blood glucose reduction (~16%)
1 gram (1,000 mg) daily of Gencinia. Effects on fasting and post-prandial blood
Moderate
Saberry® (Standardized Amla Extract — Sabinsa)
Fasting blood sugar lowered in an open-label diabetes trial
1 g/day or 2 g/day Saberry — both clinically studied. 1 g comparable to metformin 500
Moderate
Salacia reticulata (Kothala Himbutu)
Helps blunt post-meal blood sugar spikes
Acute postprandial trials have used 240–1,000 mg of Salacia extract before
Moderate
Silbinol® (Indian Kino Pterostilbene Extract — Sabinsa)
Blood sugar support — ICMR Phase 2 evidence
200 mg/day Silbinol 90% pterostilbene (100 mg twice daily) — dose established in the
Limited
Dill Seed and Leaf
Insulin Markers Improved, Fasting Glucose Largely Unchanged
Dill tablet 1-1.5 g/day or dill extract 650 mg/day for 8-12 weeks in lipid and
Moderate
Arabinoxylan (Arrabina®)
Blood sugar and postprandial glucose blunting
4–15 g/day; blood sugar management: 8–15 g/day with meals; immune studies: 4–10 g/day;
Moderate
Chromium Dinicocysteinate
Insulin Sensitivity Support
The key trial used 400 mcg/day elemental chromium as chromium dinicocysteinate for 3
Moderate
Cinnamon (Ceylon vs Cassia)
Modest Blood Glucose Reduction (T2DM)
1-6 g/day cinnamon powder; 250-500 mg/day water-soluble extract (Cinnulin PF®
Moderate
Gymnema Sylvestre (Gurmar — 'Sugar Destroyer')
Glycemic Improvement in T2DM
200-400 mg/day standardized extract (typically 25% gymnemic acids); traditional form
Moderate
Neem (Azadirachta indica)
Blood Sugar Support — Studied as a Metformin Adjunct (RCT)
PINGALI 2020 T2DM: 125/250/500 mg standardized neem BID = 250-1000 mg/day × 12 wk +
Moderate
NūGensia™
Improved glucose and metabolic markers
~10 billion CFU/day
Moderate
Pantethine
Lipid profile improvement (primary application)
Standard lipid management dose: 600-900 mg/day pantethine in divided doses (typically
Limited
DeltaGold® (Annatto Tocotrienols — American River Nutrition)
Triglycerides: What the Cited Evidence Shows
125-300 mg/day DeltaGold (250 mg in T2DM trial)
Limited
GlucoVantage® (Dihydroberberine)
Blood sugar and insulin regulation
100–200 mg/day (equivalent to 500–1,000 mg standard berberine); taken before meals
Limited
GTF Chromium
Glucose Metabolism Support
Yeast-chromium diabetes trials commonly used about 400 mcg/day elemental Cr. General
Limited
Molecular Hydrogen (H2)
Cholesterol and blood sugar markers (small effects)
HRW: 1.5-7 ppm H2 in water, 0.5-2 L/day. LeBaron 2020 high-conc: ~7 ppm × 24 wk
Moderate
Acacia Fiber (inavea™ Pure Acacia)
Blood sugar response after a meal
RANGE: 5-30 g/day. PREBIOTIC (bifidogenic): ~10 g/day onset. SATIETY/METABOLIC: 15-30
Moderate
Adipromin® (Herbal Weight-Management Complex)
Metabolic rate
Around 900 mg per day in the clinical study.
Moderate
Bergacyn® (Bergamot and Cardoon Extract — Bionap)
Lipids and metabolic support
Around 600 mg per day of the combined extract.
Moderate
Carb10® (Pea Starch Carbohydrate)
82% less insulin response than maltodextrin
15–25g per serving for workout fueling; can be used pre, intra, or post-workout;
Moderate
CGA-7™
Cardiometabolic / lipid support
250 mg twice daily, 50% chlorogenic acids
Moderate
Eriocitrin / Eriomin® (Lemon Flavonoid)
Postprandial blood sugar and insulin reduction
200–400 mg/day Eriomin® standardized extract; blood sugar: 200 mg/day; uric acid:
Moderate
Gynostemma pentaphyllum (Jiaogulan / Southern Ginseng)
Blood sugar: studied in people with type 2 diabetes
Standardized extract: 200-450 mg twice daily (containing standardized gypenosides).
Moderate
InnoSlim® (Stimulant-Free Fat Burning)
Adiponectin elevation and insulin sensitivity
250 mg/day InnoSlim®; human study confirmed significant fat loss, glucose reduction,
Moderate
iXOS® (Xylooligosaccharides Prebiotic)
Metabolic and immune health benefits
1–2g/day iXOS® for prebiotic bifidogenic effects (much lower than other prebiotics at
Moderate
Lovia® (Monk Fruit + Stevia Combination — Layn USA)
No Glycemic Impact
Sweetener use per product specification
Moderate
Magnesium Chloride
Metabolic health support
Oral trials commonly use solutions delivering roughly 250-400 mg elemental magnesium
Moderate
Maitake Mushroom (Grifola frondosa)
Blood Sugar / Insulin Sensitivity
1-3 mg D-fraction/kg body weight (50-300 mg D-fraction/day for typical adults); whole
Moderate
Maqui Berry (MaquiBright®)
Glucose Findings Come From a Different Branded Extract
60 mg/day MaquiBright® standardized extract for dry eye; 162 mg/day delphinidin-rich
Limited
Factor21® (Bitter Melon Extract — Verdure Sciences)
Healthy blood sugar
Per the product specification.
Limited
FenuFibers® (Fenugreek Fiber)
Healthy blood sugar
Commonly a few grams of fenugreek fiber per day with meals.
Limited
Fenumannan® (Fenugreek Galactomannan Fiber)
Healthy blood sugar
Commonly a few grams of fenugreek fiber per day with meals.
Limited
OnoSweet® (Monk Fruit + Allulose Sweetener)
Zero-glycemic natural sweetening
Formulation ingredient — use per product recipe to achieve target sweetness; no
Limited
Sukré® (Ultra-Pure Allulose)
Lower postprandial blood glucose in healthy adults
As sweetener: 5–15g/serving; metabolic health benefits: 7–15g/day allulose with meals;
Limited
Vitosa® (Next Generation Stevia — BGG)
No Glycemic Impact
Sweetener use per product specification (typically mg amounts)
Moderate
Advantra Z® (Bitter Orange p-Synephrine — Nutratech)
Modest metabolic boost
Commonly 50 mg of p-synephrine per day, often taken before activity.
Moderate
Beanblock® (White Kidney Bean Extract — Indena)
Gentler post-meal glucose
Around 500 mg taken shortly before a starch-containing meal.
Moderate
BenfoPure® (Benfotiamine — Vitamin B1 Derivative)
Healthy glucose metabolism
Commonly 300 to 600 mg per day.
Moderate
Chlorogenic Acid
Reduces post-meal blood sugar spikes
BP: 140 mg/day green coffee bean × 4 wk. WEIGHT: 500 mg/day GBCE ≥30% CGA → -1.30 kg
Moderate
Clarinol® (Conjugated Linoleic Acid — Stepan Lipid Nutrition)
Body fat and composition
3 to 4 grams per day of CLA isomers.
Moderate
EcoGuar® (Partially Hydrolyzed Guar Gum)
Blood sugar and fullness
Commonly 5 to 7 grams per day.
Moderate
Pycnogenol® (French Maritime Pine Bark)
Blood sugar control in type 2 diabetes
50–200 mg/day; cardiovascular: 100–200 mg/day; cognitive: 100 mg/day; athletic
Limited
Crominex® 3+
Metabolic syndrome marker support
400 μg or 800 μg chromium daily as the Crominex blend (with proportional amla and
Limited
Trehalose
Improved glucose tolerance in metabolic syndrome
GLUCOSE TOLERANCE: 3.3-10 g/day (Mizote 2017: 10 g; Yoshizane 2020: 3.3 g). PAD pilot:
Limited
Trigogen® (Fenugreek/Trigonelline Glucose Support — Saanroo)
Fasting blood glucose support
Per the published Pharmaceutics 2022 trial — Trigogen is sold to formulators with
Limited
ActivAMP® (Gynostemma pentaphyllum AMPK Activator — Saanroo)
Glucose uptake and fat oxidation support
450 mg/day ActivAMP is the clinical dose used in both pivotal RCTs (body composition
Limited
Altilix®
Lipid profile support
150 mg/day of Altilix® standardized extract for 6 months in metabolic syndrome and
Limited
Amlamax™
Healthy lipid profile
250–500 mg twice daily of standardized amla extract for 12 weeks in cardiometabolic
Limited
Biotin
Blood Sugar and Blood Fats: Limited Evidence
30 mcg/day (AI); hair/nail: 2,500–10,000 mcg/day (evidence weak);
Limited
Cardiomega™
Healthy lipid profile support
Capros® amla extract is the anchor component; human cardiovascular trials of the amla
Limited
Chlorella
Lipid and glucose modulation in metabolic syndrome
General use: 3-6 g/day. NAFLD studies: 1.2-1.5 g/day × 3 months. Metabolic syndrome: 5
Limited
ChromeMate® (Niacin-Bound Chromium — Lonza)
Blood sugar: the controlled trial of this form was negative
200 mcg elemental chromium as ChromeMate per day. Clinical studies up to 1,000 mcg/day
Limited
Chromium Chloride
Glucose Metabolism Role
Adequate intake 20-35 mcg/day elemental Cr. Parenteral-nutrition formulas supply
Limited
Chromium Picolinate
Glucose Metabolism Support
Adequate intake 20-35 mcg/day elemental Cr. Diabetes trials commonly used 200-1,000
Limited
InSea2® (Brown Seaweed Polyphenols — InnoVactiv)
Gentler post-meal glucose
About 500 mg taken before a carbohydrate-containing meal.
Limited
Jamun (Java Plum)
Supports Healthy Blood Sugar
Traditional and trial doses typically range from 5-15 g/day of jamun seed powder or
Limited
L-Arabinose
Supports Healthy Postprandial Glucose
Typically co-administered at approximately 3-4% of the sucrose load (e.g., ~1-2 g
Limited
Portusana® (Purslane Extract for Blood Sugar — Frutarom/IFF)
Blood sugar support (responder subgroup in one trial)
180 mg/day Portusana — taken as three oral capsules. Notably small clinical dose vs
Limited
Rooibos (Red Bush Tea)
Helps support a healthy lipid profile
Clinical lipid and oxidative-stress trials have used about six cups (about 750 mL
Limited
Svetol® (Decaffeinated Green Coffee Extract — Givaudan/Naturex)
Post-meal glucose: one small coffee study
400 mg/day Svetol, taken before meals (often 1-3 doses daily). Dellalibera 2006 used
Limited
Yacon Syrup
Insulin Resistance Improvement
PIVOTAL: 0.14 g FOS/kg/day × 120 d (~10 g FOS = 20-25 g syrup for 70-kg adult).
Limited
Clovinol® (Clove Bud Polyphenol for Metabolic Health — Akay Bioactives)
Insulin resistance modulation (HOMA-IR, HbA1c, FBS, PPG)
250 mg/day Clovinol — the dose validated across multiple clinical trials. Effects on
Limited
Aloe Vera (Aloe barbadensis miller)
Supports healthy blood sugar
INNER LEAF GEL: 50-300 mL/day juice OR 100-300 mg/day freeze-dried powder (blood sugar
Limited
Bitter Melon (Momordica charantia)
T2DM Glycemic Modest Improvement
1-3 g/day fruit/seed powder; 200-500 mg/day standardized extract; juice 50-100 mL/day
Limited
Chromium Polynicotinate (Niacin-Bound Chromium)
Glucose Metabolism (Limited)
200-400 µg elemental chromium/day; some trials use up to 1,000 µg combined with other
Limited
Fiit-ns® (Fruit Polyphenol Extract — Fytexia)
Metabolic support
A standardized daily polyphenol dose.
Limited
Fucoxanthin
Liver fat reduction and metabolic health
2.4-12 mg/day fucoxanthin in human trials: 2.4 mg/day with 300 mg pomegranate seed oil
Limited
Go-Luo® (Monk Fruit Extract — Layn USA)
No Glycemic Impact
Sweetener use per product specification (typical mg amounts)
Limited
Holy Basil (Tulsi)
Blood sugar regulation
300–600 mg/day dried leaf extract; 1–2 g/day whole leaf powder
Limited
Lacprodan® (Branded Family of Hydrolyzed Whey and Milk Proteins)
Higher short-term insulin response with hydrolyzed whey
Class-level whey protein dosing in muscle protein synthesis trials is typically 20–40
Limited
LuraLean® (Propolmannan Konjac Fiber — AHD International)
Blood glucose lowering effects
1-3 g LuraLean per day, taken BEFORE meals with water for satiety. 8-week trials at
Limited
Melostacio® (Mango Leaf Extract)
Carbohydrate and glucose handling: laboratory and animal evidence only
100–300 mg/day mangiferin (as Melostacio® standardized extract); metabolic effects
Limited
Meratrim® (Sphaeranthus indicus + Garcinia mangostana)
Supports healthy lipid markers in overweight adults
Sponsor-funded RCTs used 400 mg twice daily (800 mg/day total) of Meratrim®, taken 30
Limited
Millet Sprout Powder
Supports Healthy Glycemic Response
Typical food-based intake of millet flour ~50-100 g/day in dietary trials; no
Limited
Oligonol® (Lychee + Green Tea Polyphenol — Amino Up)
Post-meal blood glucose and lipid support
Visceral fat protocol: 200 mg/day Oligonol® (50 mg twice daily) for 10 weeks.
Limited
StarchLite® (White Kidney Bean Extract)
Post-meal glucose support
Commonly 500 mg to 1 g before starchy meals.
Limited
Terminalia Chebula (Rejuna®)
Blood sugar: limited and mixed human data
500–1,000 mg/day standardized extract; Rejuna® clinical dose: 500 mg/day; traditional
Limited
ThinOgen® (Fucoxanthin from Brown Seaweed — BGG)
Metabolic Health Support
2.4 mg/day fucoxanthin (research-validated; some products use higher amounts of total
Limited
Vanadium (Vanadyl Sulfate)
Insulin sensitivity and blood sugar reduction
10–100 mg/day vanadyl sulfate in human studies; organic vanadium (BMOV): 10–30 mg/day;
Limited
Xanthigen® (Fucoxanthin + Pomegranate Seed Oil)
Triglycerides in the same trial
PIVOTAL: 600 mg Xanthigen®/day × 16 weeks (300 mg PSO + 300 mg brown seaweed extract
Strong
Ashwagandha
Blood Sugar Control
KSM-66® root extract: 300-600 mg/day (most stress/sleep trials). Shoden®: 120-240
Limited
AfperFIT™
Caffeine-free metabolic support
500 mg/day, 6-paradol
Limited
Calanus® Oil (Arctic Zooplankton Omega-3 Wax Esters)
Metabolic health in prediabetic populations
2g/day Calanus® Oil capsules; clinical study: 2–4g/day; wax ester form may have
Limited
EnergySMART® (Low-Glycemic Carbohydrate Complex — Anderson)
Lower-glycemic sweetness
Per the product or recipe.
Limited
Erythritol
Bulk sugar replacement with zero glycemic impact
Typical food and beverage use: 5-30 g per serving. GI tolerance: roughly 50 g single
Limited
FiberSMART® (Soluble Tapioca Fiber — Anderson)
Low glycemic impact
Commonly several grams of fiber per serving.
Limited
FucoVital® (Microalgae Fucoxanthin — Algatech)
Metabolic support
Commonly a few milligrams of fucoxanthin per day.
Limited
GCBest® (Green Coffee Bean Extract)
Metabolic support
Commonly 200 to 400 mg of green coffee extract per day.
Limited
Mythocondro® (Non-Animal Chondroitin Sulfate — Gnosis by Lesaffre)
Secondary metabolic markers within the single OA trial (not a metabolic indication)
PIVOTAL: 600 mg/day × 12 weeks (n=60 overweight knee OA). Notably lower than typical
Limited
Phytofare® (Bioavailable Green Tea Catechin Complex — Plandaí)
Metabolic support
A standardized daily dose of bioavailable catechins.
Limited
ROSEFIT™
Polyphenol/quercetin metabolic support
400 mg/day (200 mg twice daily)
Limited
SantEnergy™ Nu
Flavonoid antioxidant and metabolic activity
400 mg twice daily
Moderate
Taurine
Metabolic Health
500–3,000 mg/day; energy drinks typically contain 1,000 mg; athletic performance: 1–3
Limited
Akkermansia muciniphila
Insulin sensitivity and glucose regulation
Depommier 2019: 10¹⁰ CFU/day pasteurized × 3 months. Most products: 10⁸-10⁹ CFU/day.
Limited
CyaniMax® (Cyanidin-3-O-Glucoside Anthocyanin — BGG World)
Metabolic health support (preclinical)
300 mg/day BSHE/C3G (black soybean hull extract) — the dose used in the pivotal
Limited
GlyNAC (Glycine + N-Acetylcysteine)
Support for healthy glucose metabolism (HOMA-IR fell 68% in one small trial)
PIVOTAL: glycine 1.33 mmol/kg/day (~7 g/70 kg) + NAC 0.83 mmol/kg/day (~9.5 g/70 kg) ×
Limited
Okra Extract
Supports Healthy Postprandial Glucose
Okra powder 1-2 g/day in T2D trials; whole okra pods 100 g/day in dietary interventions.
Preliminary
4-Hydroxy-L-Isoleucine
Glucose-dependent insulin secretion support
Standalone 4-OH-Ile human data is limited; preclinical doses range 18–50 mg/kg in
Preliminary
Sucralose
Reduced insulin sensitivity and dysbiosis findings (concerning)
Acceptable Daily Intake (ADI): 5 mg/kg/day per FDA; 15 mg/kg/day per EU EFSA. Typical
Moderate
Resveratrol
Blood sugar regulation
150–500 mg/day trans-resveratrol; bioavailability enhanced with piperine or liposomal
Limited
inavea™ CINNAMON ACACIA
Glucose and Insulin Markers (Animal Model + Cinnamon Component Data)
5 g/day (research-validated dose)
Limited
Moringa
Antioxidant support, with mixed human results
2–7 g/day leaf powder; clinical studies typically use 6–8 g/day
Preliminary
Chromium Histidinate
Chromium's Role in Glucose Metabolism
The human absorption study used a single 200 mcg elemental Cr dose. Chromium adequate
Preliminary
Csat+® (Pharmactive Carob Extract)
Blood lipids: dose-dependent and, in humans, mixed
Per Pharmactive product specification — Csat+ is sold to formulators for incorporation
Preliminary
pTeroWhite® (99% trans-Pterostilbene)
Metabolic and Cardiovascular Support
50–250 mg/day; the foundational human trials used 125 mg twice daily (250 mg/day).
Preliminary
R-Lipoic Acid (Natural / Stabilized R-ALA)
Insulin Sensitivity / Blood Sugar
100-300 mg/day R-ALA (equivalent to ~200-600 mg racemic ALA); diabetic neuropathy 600
Moderate
Aged Black Garlic ABG10+® (Pharmactive)
Glycemic control support
Standard dose: 250-500 mg/day ABG10+® standardized aged black garlic extract.
Moderate
Hibiscus (Roselle)
Supports Metabolic Wellness
Typical clinical trials use 1.25-10 g dried calyces brewed as tea, or 250-500 mg of
Moderate
Phase 2® (White Kidney Bean Extract — Ashland)
Unproven blood sugar effect
Commonly 500 mg to 1 g before starchy meals.
Limited
Capsinoids (Non-Pungent Capsaicin Analogs)
Glucose metabolism (mainly animal data)
WEIGHT MANAGEMENT (Snitker 2009 + Galgani 2010): 6 mg capsinoids daily × 4-12 wk.
Limited
CarbLite® (White Kidney Bean Carb Blocker)
Carbohydrate blocking
Commonly 500 mg to 1 g before starchy meals.
Limited
Ecklonia Cava (Brown Seaweed Polyphenol)
Metabolic health — fat oxidation and glucose management
400–800 mg/day Ecklonia cava extract standardized for phlorotannins; clinical studies
Limited
Glabridin (Licorice Isoflavone)
Glucose and body-fat effects (preclinical)
LDL oxidation: 250 mg/day for 6 months. Type 2 diabetes and metabolic syndrome: 300
Limited
Myricetin
Dietary intake associated with metabolic health in epidemiological studies
DIETARY: 1-4 mg/day (walnuts, cranberries, blueberries, red wine, tea). SUPPLEMENT:
Limited
Naringenin
Cardiovascular / Lipid Effects
150-500 mg/day; emerging supplement category; standardized doses not yet
Limited
Sacha Inchi
Helps support a healthy lipid profile
Small clinical trials have used about 5–10 mL of sacha inchi oil per day for 16 weeks,
Limited
SelectSIEVE® Bergamot (Citrus bergamia Extract — Bionap)
Healthy cholesterol and lipids
Commonly 500 to 1000 mg of bergamot extract per day.
Limited
Slendesta® (Potato Protein Extract)
Blood sugar and insulin response modulation
600 mg/day Slendesta® (providing ~30 mg PI2); taken 30 minutes before main meals;
Limited
Stevia (Stevia rebaudiana)
Glycemic neutrality
Acceptable Daily Intake (steviol equivalents): 4 mg/kg/day (FDA, EFSA). Common
Limited
Ursolic Acid
Theoretical metabolic benefits (animal studies)
MUSCLE/STRENGTH: 400-450 mg/day divided (Bang 2014: 450 mg POSITIVE; Pereira 2020: 400
Preliminary
AcaiVida® (Açaí Berry Extract)
Metabolic support
Commonly around 1 to 2 g of açaí preparation per day.
Preliminary
MangoSelect® (African Mango Seed Extract)
Metabolic markers
Commonly around 150 mg twice daily before meals.
Preliminary
Buckwheat Sprout
Contains D-chiro-inositol, but blood sugar effects are untested
Buckwheat sprout extracts standardized to rutin are commonly used at 100–500 mg/day;
Preliminary
GyngerLean® (Ginger Weight Management Extract)
Thermogenesis and metabolic rate
400–800 mg/day GyngerLean® standardized ginger extract; clinical studies at 400 mg
Preliminary
Lucuma
Naturally Lower-Glycemic Sweetener
No established clinical dose; commonly used as 5-15 g/day of lucuma powder added to
Preliminary
NMN (Nicotinamide Mononucleotide)
Metabolic health
250–500 mg/day (commonly studied); up to 1,200 mg/day in clinical trials
Preliminary
p-Synephrine (Bitter Orange)
Metabolic Rate: Small and Not Significant for Synephrine Alone
Most human studies used p-synephrine 25-50 mg per day, alone or combined with caffeine
Preliminary
Pea Hull Fiber
Post-Meal Blood Sugar: Benefit Belonged to Other Pea Components
5-15 g/day in divided doses with adequate water; satiety trials used 7-15 g acute
Preliminary
Pleurotus ostreatus (Oyster Mushroom)
What the trials actually found on cholesterol and blood sugar
OYSTER MUSHROOM SOUP: 30 g dried daily × 21 days (lipid trial). β-GLUCAN SUPPLEMENT:
Moderate
Capsaicin / Capsicum Extract (Cayenne Pepper)
Cardiovascular and lipid effects
2-10 mg total capsaicinoids per day, typically from 25-100 mg of capsicum extract. 2
Limited
Astragalus (Astragalus membranaceus)
Blood sugar regulation
ROOT: 2-6 g/day dried OR 250-500 mg/day standardized extract. IMMUNE: 500 mg BID.
Limited
Manganese Sulfate
Supports normal metabolic function
Adult AI 1.8–2.3 mg/day elemental manganese; UL 11 mg/day. Used in fortification and
Limited
MitoBurn® (L-BAIBA)
Insulin sensitivity and glycogen storage
250–500 mg/day; 500 mg is the full clinical dose
Limited
Prenulin® (L-Arabinose and Chromium — Pharmachem)
Post-meal blood sugar
Taken before sugar-containing meals; dose per product.
Limited
Tinospora Cordifolia (Tinofend®)
Blood sugar regulation
300 mg/day Tinofend® (standardized extract); traditional Ayurvedic dose: 1–3 g/day
Preliminary
Black Pepper Extract
Metabolic effects: not measured in the studies cited here
Standard supplemental dose: 5-20 mg piperine per dose (typically standardized to ≥95%
Preliminary
Long Pepper (Pippali)
Promotes Metabolic Wellness
Traditional Ayurvedic use of 1-3 g/day of dried fruit; standardized extracts typically
Preliminary
Manganese Picolinate
Supports normal metabolic enzymes
Adult AI 1.8–2.3 mg/day elemental manganese; UL 11 mg/day. Picolinate products
Very Strong
Magnesium
Blood pressure reduction
RDA 310–420 mg/day; therapeutic 200–400 mg elemental Mg/day. Glycinate/malate for
Strong
Choline
Fetal brain development and pregnancy
425 mg/day (women AI); 550 mg/day (men AI); 930 mg/day (pregnant); up to 3,500 mg/day
Strong
Potassium Chloride
Efficient Potassium Repletion
Repletion regimens commonly use 20 mEq/day to prevent and 40-100 mEq/day to treat low
Strong
Selenium
Antioxidant defense
55 mcg/day (RDA); therapeutic studies: 100–200 mcg/day; upper limit 400 mcg/day
Strong
ThymoQuin® (Black Seed Oil — TriNutra)
Cardiometabolic biomarker improvements
Standard formulation use: 500-1,000 mg ThymoQuin® daily. Cardiometabolic protocols
Strong
Vitamin B6 (Pyridoxine)
Brain Health and Mood Regulation
1.3–1.7 mg/day (RDA); therapeutic: 25–100 mg/day; upper limit 100 mg/day long-term
Moderate
Aronia / Chokeberry (Aronia melanocarpa)
Modest Blood Pressure Reduction
STANDARDIZED EXTRACT: 100-300 mg/day (25-50 mg anthocyanins) OR juice 200-300 mL/day ×
Moderate
Capsifen® (Bioavailable Capsaicinoids via FenuMat® — Akay Bioactives)
Dose-dependent weight reduction
100-200 mg/day Capsifen (Roopashree 2024 trial protocol). The 200 mg/day dose produced
Moderate
Capsimax® (Beadlet-Encapsulated Capsicum Extract — OmniActive)
Increased resting energy expenditure
100 mg/day (providing ~2 mg capsaicinoids) is the standard clinical dose. Some trials
Moderate
Evening Primrose Oil (Oenothera biennis)
Eczema and atopic dermatitis improvement
3–6 g/day EPO (providing 240–480 mg GLA); eczema: 4–8 g/day; PMS: 3–4 g/day; diabetic
Moderate
GarSlim® (Garlic Extract)
Cardiovascular support
Commonly providing several milligrams of allicin potential per day.
Moderate
L-Carnitine
Cardiovascular support (studied in heart patients)
General supplementation: 1-3 g/day L-carnitine. Athletic recovery: 2 g/day L-carnitine
Moderate
Metabolaid® (Hibiscus + Lemon Verbena)
AMPK activation and fat oxidation
500 mg/day Metabolaid® (325 mg lemon verbena + 175 mg hibiscus); taken before exercise
Moderate
NEOBEE® (Medium-Chain Triglycerides — Stepan)
Body composition
Commonly 10 to 20 grams per day with meals.
Moderate
Nicotinamide Riboside
Documented blood NAD+ elevation
Standard dose: 250-1,000 mg/day NR. Most clinical trials use 300-600 mg/day. Take with
Moderate
Pantothenic Acid
Supports Energy Metabolism
AI (Adequate Intake): 5 mg/day adults (no RDA). PREGNANCY: 6 mg/day. LACTATION: 7
Moderate
Trpti™ (Bioavailable Oleoylethanolamide / OEA — Saanroo)
Akkermansia muciniphila enrichment
300 mg/day Trpti (delivering 250 mg OEA), taken as two 150 mg capsules — one morning,
Moderate
Witholytin® (Olive Leaf Extract — Verdure Sciences)
Reduced fatigue and low energy
Clinical trial protocol: 500 mg twice daily (1,000 mg/day total) for 8 weeks.
Limited
Amlaac® (Amla / Indian Gooseberry Extract)
Healthy cholesterol
Commonly around 500 mg to 1 g per day.
Limited
Ammonium Molybdate
Sulfite Metabolism Support
RDA 45 mcg/day elemental Mo. Liquid molybdenum products typically provide 25-500
Limited
Beef Pancreas (Desiccated)
Natural digestive enzyme content
Typical supplementation: 1.5-3 g/day (2-4 capsules at 750 mg each) desiccated beef
Limited
Bergavit® (Bergamot Flavonoid Extract — Bionap)
Healthy cholesterol levels
About 150 mg of bergamot flavonoids per day.
Limited
BioPerine® (Black Pepper Extract — Sabinsa)
The curcumin figure: widely quoted, not cited here
Standard formulation use: 5-10 mg BioPerine® per dose alongside compounds requiring
Limited
Bladderwrack Extract
Traditional support for thyroid nutrition
Whole bladderwrack powder traditionally used at 500–2,000 mg/day; fucoidan-rich F.
Limited
Caffinity® (natural coffee-fruit caffeine complex — FutureCeuticals)
Supports exercise performance and endurance output
286 mg Caffinity (~200 mg natural caffeine + ~15 mg coffee-fruit polyphenols), single pre-exercise dose
Limited
Citrin® / Citrin K® (Garcinia cambogia Hydroxycitric Acid)
Standardized, Soluble HCA Source
Garcinia/HCA trials commonly used ~1,000–1,500 mg HCA/day in divided doses before
Limited
Glavonoid® / Kaneka Glavonoid™ (Licorice Flavonoid Oil)
Body fat and visceral fat 8-week dose-finding RCT
TOMINAGA 2009 DOSE-FINDING: 300, 600, or 900 mg LFO/day × 8 weeks in overweight adults
Limited
Greenselect® Phytosome (Decaffeinated Green Tea Catechin Phytosome — Indena)
Weight loss alongside a hypocaloric diet (Di Pierro 2009, blinding not stated)
300 mg/day Greenselect Phytosome, split as 150 mg twice daily (one dose before lunch,
Limited
KiOtransine® (Chitin-Glucan Prebiotic Fiber — KitoZyme)
Gut microbiome support
Commonly a few grams per day.
Limited
Lactobacillus gasseri
Abdominal fat: one trial, one strain, in fermented milk
10 billion CFU/day (BNR17 weight loss); 200 mL fermented milk with 5 × 10^10 CFU/100
Limited
LeanGard® (Weight-Management Blend)
Body-Composition Support (Adjunct)
No independently established consumer dose for the finished blend; used per
Limited
Manganese Bisglycinate
Gentle chelated trace-mineral source
Adult AI 1.8–2.3 mg/day elemental manganese; UL 11 mg/day. Premium multivitamins
Limited
Manganese Gluconate
Supports antioxidant enzyme defense
Adult AI 1.8–2.3 mg/day elemental manganese; UL 11 mg/day. Multivitamins typically
Limited
Molybdenum Glycinate
Sulfite Metabolism Support
RDA 45 mcg/day elemental Mo. Chelated molybdenum supplements commonly supply 50-500
Limited
Morosil® (Moro Red Orange Extract)
Modest body weight and fat mass reduction
PIVOTAL DOSE: 400 mg/day Morosil® dry extract. CARDILE 2015: × 12 wk. BRISKEY 2022: ×
Limited
Oat Fiber
Adds Undigested Bulk to Stool
5-15 g/day of insoluble oat fiber for stool bulking; total fiber intake target 25-38
Limited
Pantesin® (Pantethine — Daiichi Fine Chemical)
What the cholesterol trials actually found
Standard clinical protocol: 600-900 mg/day Pantesin® in divided doses (300 mg three
Limited
Pentadecanoic Acid (C15:0)
Cellular Energy and Mitochondrial Support
100-200 mg/day (single capsule); taken with food. Most published cellular and
Limited
Phosphocomplex® (Silybin Phytosome — Indena)
Liver support
A standardized daily dose providing bioavailable silybin.
Limited
Potassium Bicarbonate
Supports Bone Mineral Conservation
Bone-health trials used about 1 to 1.5 mmol/kg per day (roughly 60-90 mEq potassium
Limited
Potassium Gluconate
Convenient Potassium Source
OTC tablets are typically capped at 99 mg elemental potassium each; total daily
Limited
Satiereal® (Standardized Saffron Extract for Snacking Control)
Helps reduce snacking frequency
The pivotal Gout 2010 RCT used 176.5 mg/day of Satiereal® saffron extract for 8 weeks
Limited
SensorilTrim
Stress-Related Eating Support
Component-level dosing in published trials: Sensoril 125-250 mg twice daily; Capros
Limited
Sinetrol® (Citrus Polyphenol Blend)
Reduced abdominal fat in one 12-week trial
Published RCTs used 900–1,400 mg/day Sinetrol® or Sinetrol-XPur, typically as 450 mg
Limited
Sodium Molybdate
Sulfite Metabolism Support
RDA 45 mcg/day elemental Mo for adults. Supplements commonly provide 50-500 mcg/day. A
Limited
SteviUp® M2 (Next-Gen Stevia Reb M — Layn USA)
Superior Water Solubility
Sweetener use per product specification
Limited
Tonalin® CLA (Conjugated Linoleic Acid)
Modest reduction in body fat mass
Typical Tonalin® CLA dose in body composition trials: 3.2–6.4 g/day total CLA isomers,
Limited
Tributyrin (CoreBiome® Butyrate Prodrug)
Microbiome and inflammation effects (in vitro)
SHIME® IN VITRO: 300 mg cap + 450 mg softgel. FSU CrossOver: 300 mg/day × 4 wk
Preliminary
Evodia rutaecarpa (Wu Zhu Yu)
Traditional use for digestive complaints (no human studies)
Traditional Chinese Medicine doses of the dried fruit are commonly 1.5–6 g per day in
Preliminary
FB3 Fusion® (Fat-Absorption Botanical Blend — Bio Actives Japan)
What the Coleus forskohlii trial measured
Per the product specification.
Preliminary
Gugulipid® (Standardized Commiphora mukul Extract)
Joint symptoms: no controlled trial has ever been run
Historic Indian trials used guggulipid providing ~25 mg total guggulsterones three
Preliminary
Inositol Hexanicotinate (IHN)
Niacin-Form Marketed as Flush-Free
Trials and marketed products typically deliver 500-2,000 mg/day in divided doses;
Preliminary
Manganese Citrate
Clean-label trace-mineral source
Adult AI 1.8–2.3 mg/day elemental manganese; UL 11 mg/day. Clean-label multivitamins
Preliminary
Metabolyte® (BHB Energy + B-Vitamins)
Dual-pathway cellular energy support
Per Compound Solutions product specifications; typical BHB component 3–6g; combined
Preliminary
TraceReplace™ (plant-derived trace mineral complex — FutureCeuticals)
Broad-spectrum trace mineral replenishment
No established human clinical dose; used at low mg-level trace-mineral inclusions in foods/beverages