Top 5 — Ranked by Evidence
Very Strong
Folate
May Improve Mental Health
400 mcg/day DFE (RDA); pregnancy: 600 mcg/day; methylfolate (5-MTHF): 400–800 mc
Very Strong
Zinc
Immune System Support
8–11 mg/day (RDA); therapeutic: 25–40 mg/day elemental zinc; upper limit 40 mg/d
Strong
Acetyl-L-Carnitine (ALCAR)
Neuropathy pain relief and nerve regeneration
500–2,000 mg/day in divided doses; neuropathy: 1,000 mg three times daily (3,000
Strong
Ashwagandha
Testosterone and Muscle
300–600 mg/day standardized extract (withanolides ≥2.5–5%)
Strong
Inositol (Myo-Inositol)
PCOS symptom improvement
2–4 g/day myo-inositol; PCOS: 4 g/day myo + 100 mg D-chiro-inositol
All Fertility Ingredients (12)
Very Strong
Folate
May Improve Mental Health
400 mcg/day DFE (RDA); pregnancy: 600 mcg/day; methylfolate (5-MTHF): 400–800 mc
Very Strong
Zinc
Immune System Support
8–11 mg/day (RDA); therapeutic: 25–40 mg/day elemental zinc; upper limit 40 mg/d
Strong
Acetyl-L-Carnitine (ALCAR)
Neuropathy pain relief and nerve regeneration
500–2,000 mg/day in divided doses; neuropathy: 1,000 mg three times daily (3,000
Strong
Ashwagandha
Testosterone and Muscle
300–600 mg/day standardized extract (withanolides ≥2.5–5%)
Strong
Inositol (Myo-Inositol)
PCOS symptom improvement
2–4 g/day myo-inositol; PCOS: 4 g/day myo + 100 mg D-chiro-inositol
Strong
KSM-66®
Stress and Anxiety Reduction
300–600 mg/day KSM-66® root extract (5% withanolides); 300 mg twice daily or 600
Strong
L-Carnitine (Carnipure®)
Fat metabolism and body composition
1–3 g/day L-carnitine tartrate; 500 mg–2 g/day acetyl-L-carnitine; best absorbed
Strong
NAC (N-Acetylcysteine)
Antioxidant Support
600–1,800 mg/day in divided doses; respiratory: 600 mg twice daily; liver suppor
Strong
Tongkat Ali (LJ100®)
Free testosterone elevation and SHBG reduction
200–400 mg/day LJ100® (100:1 extract); most clinical trials use 200 mg/day; effe
Moderate
Shatavari (Asparagus racemosus / Xeya®)
Female hormonal balance and reproductive health
500–1,000 mg/day dried root extract; Xeya® clinical dose: 500 mg/day; lactation
Moderate
Shilajit / Fulvic Acid (PrimaVie®)
Testosterone and male reproductive health
250–500 mg/day purified shilajit or PrimaVie®; testosterone studies use 250 mg t
Limited
Maca
Improved Sexual Function and Libido
1.5–3 g/day dried root powder; gelatinized maca preferred for digestion; 8–12 we