Top 5 — Ranked by Evidence
Very Strong
Folate
Aids in Fertility
400 mcg/day DFE (RDA); pregnancy: 600 mcg/day; methylfolate (5-MTHF): 400–800 mcg/day
Very Strong
Zinc
Immune System Support
8–11 mg/day (RDA); therapeutic: 25–40 mg/day elemental zinc; upper limit 40 mg/day; a
Strong
Ashwagandha
Male Fertility and Testosterone
KSM-66® root extract: 300-600 mg/day (most stress/sleep trials). Shoden®: 120-240 mg/
Strong
KSM-66®
Testosterone and Fertility Support
300–600 mg/day KSM-66® root extract (5% withanolides); 300 mg twice daily or 600 mg o
Strong
NAC (N-Acetylcysteine)
Fertility Benefits
600–1,800 mg/day in divided doses; respiratory: 600 mg twice daily; liver support: 60
📈 Fastest Growing Fertility Ingredients
Branded ingredients seeing rapid growth in formulator adoption and clinical research in 2024–2026.
Trending
Strong
KSM-66®
Stress and Anxiety Reduction
300–600 mg/day KSM-66® root extract (5% withanolides); 300 mg twice daily or 600 mg once…
Trending
Strong
Tongkat Ali
Testosterone support in men with low levels
Standard dose: 100-400 mg/day standardized root extract. Most clinical trials use 200-400…
Trending
Strong
Inositol (Myo-Inositol)
PCOS symptom improvement
2–4 g/day myo-inositol; PCOS: 4 g/day myo + 100 mg D-chiro-inositol
🔬 Future Fertility Ingredients to Watch
Lower current evidence but active research underway — these may become top picks within 2–3 years.
Watch
Moderate
Shilajit
Testosterone increase in middle-aged men
Standard clinical dose: 250 mg twice daily (500 mg/day total) of purified shilajit…
Watch
Moderate
Shatavari (Asparagus racemosus / Xeya®)
Lactation support — strongest evidence
500-1,000 mg/day standardized root extract. Lactation: 300 mg twice daily. PCOS (CL22209): 100…
Watch
Strong
L-Carnitine
Cardiovascular support in heart failure and angina
General supplementation: 1-3 g/day L-carnitine. Athletic recovery: 2 g/day L-carnitine…
All Fertility Ingredients (16)
Very Strong
Folate
Aids in Fertility
400 mcg/day DFE (RDA); pregnancy: 600 mcg/day; methylfolate (5-MTHF): 400–800 mcg/day
Very Strong
Zinc
Immune System Support
8–11 mg/day (RDA); therapeutic: 25–40 mg/day elemental zinc; upper limit 40 mg/day; a
Strong
Ashwagandha
Male Fertility and Testosterone
KSM-66® root extract: 300-600 mg/day (most stress/sleep trials). Shoden®: 120-240 mg/
Strong
KSM-66®
Testosterone and Fertility Support
300–600 mg/day KSM-66® root extract (5% withanolides); 300 mg twice daily or 600 mg o
Strong
NAC (N-Acetylcysteine)
Fertility Benefits
600–1,800 mg/day in divided doses; respiratory: 600 mg twice daily; liver support: 60
Strong
Acetyl-L-Carnitine (ALCAR)
Male fertility improvement
COGNITIVE/AGING: 1500-3000 mg/day divided. DIABETIC NEUROPATHY: 1000 mg × 3/day = 300
Strong
Tongkat Ali
Male fertility support
Standard dose: 100-400 mg/day standardized root extract. Most clinical trials use 200
Strong
Inositol (Myo-Inositol)
Egg quality and fertility
2–4 g/day myo-inositol; PCOS: 4 g/day myo + 100 mg D-chiro-inositol
Strong
L-Carnitine
Male fertility — sperm count and motility
General supplementation: 1-3 g/day L-carnitine. Athletic recovery: 2 g/day L-carnitin
Moderate
Astaxanthin
Eye Health Benefits
4–12 mg/day from Haematococcus pluvialis extract; skin: 4–6 mg/day; exercise recovery
Moderate
Shatavari (Asparagus racemosus / Xeya®)
Anovulatory infertility — comparable to clomiphene in small trials
500-1,000 mg/day standardized root extract. Lactation: 300 mg twice daily. PCOS (CL22
Moderate
PrimaVie® (Shilajit Extract — Natreon)
Sperm count and male fertility
Clinical trial dose: 250 mg twice daily (500 mg/day total) for 90 days. CoQ10 potenti
Moderate
Shilajit
Testosterone increase in middle-aged men
Standard clinical dose: 250 mg twice daily (500 mg/day total) of purified shilajit st
Limited
Maca
Enhanced Male Fertility
1.5–3 g/day dried root powder; gelatinized maca preferred for digestion; 8–12 weeks f
Limited
Royal Jelly
Traditional fertility and vitality use
MENOPAUSE (Sharif 2019 n=200): 1000 mg/day × 8 wk. ASAMA 2018 n=42: 800 mg/day enzyme
Limited
Safed Musli (Chlorophytum borivilianum)
Modest semen parameter improvements (small Ayurvedic clinical trials)
TRADITIONAL AYURVEDIC: 5-10 g root powder/day with milk. CAPSULE EXTRACTS: 250-500 mg