Pumpkin Seed
Seeds rich in zinc, magnesium, iron, omega-6 fatty acids, and plant protein. Researched for prostate health, overactive bladder, and urinary symptoms; traditionally used for men's health support.
An ingredient with still-limited research

Buy
(PR)The links below include affiliate links (PR).
Effects reported in research
Natural source of zinc and magnesium supporting male hormones and immune function
Some research suggests improvement in BPH-related urinary symptoms
Contributes plant protein and fiber to nutritional balance
Dosage & timing
- About 30 g/day as whole seeds, or as oil/extract supplement following product instructions.
Cautions
- •High in calories (~160 kcal per 30 g) — monitor portion size.
- •Rare allergy possible.
Supporting research
Effects of Zinc Supplementation on Testosterone Levels and Immune Function
Nutrition, 1996
An RCT examining the effects of zinc supplementation (45 mg/day, 6 months) on testosterone and immune function in zinc-deficient young and older men. Testosterone was significantly lower in zinc-deficient individuals and recovered to normal range with supplementation. Immune markers (NK cell activity, IL-2, etc.) also improved.
The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trial
Journal of Research in Medical Sciences, 2012
A double-blind, placebo-controlled RCT giving magnesium 500 mg/day for 8 weeks to 46 elderly adults with primary insomnia. Subjective sleep time and sleep efficiency improved significantly, early morning awakening decreased, and serum melatonin and renin rose while cortisol fell. Because participants were elderly, the results may not generalize to young athletes, and the sample size was small.
Similar supplements
ZMA
Confidence: LowZinc, Magnesium, and Vitamin B6 complex
A combination supplement of zinc, magnesium, and vitamin B6. Known for strong marketing claims about boosting testosterone and building muscle, but independent studies have not confirmed hormonal increases. Has some value in correcting zinc deficiency.
Moringa
Confidence: LowMoringa (Moringa oleifera) leaf powder
A plant called the "miracle tree" for its high concentration of vitamins, minerals, essential amino acids, and antioxidants (isothiocyanates). Studied for anti-inflammatory, blood sugar regulation, and antioxidant effects — large-scale human trials are still limited.
Zinc Picolinate
Confidence: ModerateZinc picolinate
A chelated zinc form bound to picolinic acid. Some research indicates higher absorption than zinc oxide or sulfate. Zinc's role in testosterone levels, immune function, and protein synthesis is well-studied.
Last checked: