Protocol · Men's Health & Vitality
Sexual Health & Vitality Support Protocol
Tongkat Ali (Eurycoma longifolia) and L-Arginine are the core of this stack, with 8 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Sexual Health & Vitality Support.
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
10 supplements · 3 graded · 3 confirmed studies
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file | Shop |
|---|---|---|---|---|---|
| Primary stackThe core of this protocol | |||||
| Tongkat Ali (Eurycoma longifolia) | Amount listed: 200–400 mg standardized extract daily | Traditional herb that may support healthy testosterone levels, libido, and sexual performance in men
| Grade B for Erections1 study · 128 people | ||
Confirmed studies for Tongkat Ali (Eurycoma longifolia) (titles as PubMed lists them) | |||||
| L-Arginine | Amount listed: 3–5 g daily | Nitric oxide precursor that improves blood flow and may enhance erectile function | Not graded yet | ||
Confirmed studies for L-Arginine (titles as PubMed lists them) | |||||
| Supporting stackListed as additions to the core | |||||
| Maca (Lepidium meyenii) | Amount listed: 1.5–3 g daily | Adaptogenic herb that may improve sexual desire and function in both men and women
| Grade D for Blood glucose197 people | ||
Confirmed studies for Maca (Lepidium meyenii) (titles as PubMed lists them) | |||||
| Zinc | Amount listed: 25–50 mg daily | Essential for testosterone production and sperm health; deficiency impairs sexual function | Not graded yet | ||
| Panax Ginseng (Korean Red Ginseng) | Amount listed: 900–1,000 mg standardized extract 2–3 times daily | Adaptogen that may improve erectile function and sexual satisfaction
| Not graded yet | ||
| L-Citrulline | Amount listed: 1.5–3 g daily | Converts to L-arginine; may improve erection hardness through enhanced nitric oxide production | Not graded yet | ||
| Ashwagandha | Amount listed: 300–600 mg standardized extract daily | Adaptogen that reduces stress and cortisol; may improve testosterone and sexual function
| Not graded yet | ||
| Vitamin D | Amount listed: 2,000–4,000 IU daily (based on levels) | Deficiency associated with low testosterone and erectile dysfunction; supplementation may help | Not graded yet | ||
| Fenugreek | Amount listed: 500–600 mg standardized extract daily | May support healthy testosterone levels and improve libido in men | Not graded yet | ||
| Tribulus Terrestris | Amount listed: 250–750 mg standardized extract daily | Traditional herb that may support sexual desire and function
| Grade D for Luteinizing Hormone21 people | ||
Shop the evidence-backed picks
The collection holds the supplements we grade A or B for its theme, in third-party tested products where the catalog has them. It opens in our Fullscript store. You can look through it without signing in; Fullscript asks for a free account to order.
Or shop one supplement
The supplement in this protocol graded A or B. Each opens third-party tested products, matched to the dose above where we can.
- Grade B
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How this protocol works
In plain language
Sexual health is important for quality of life and relationships. Sexual function involves complex interactions between hormones, blood flow, nerve function, and psychological factors. Many men experience decreased libido or erectile difficulties at some point, often related to stress, age-related changes, or health conditions like diabetes and cardiovascular disease. Natural supplements can support healthy sexual function through various mechanisms.
IMPORTANT: Erectile dysfunction can be an early sign of cardiovascular disease. Sudden or severe sexual dysfunction should be evaluated by a healthcare provider. These supplements support healthy sexual function but don't treat underlying medical conditions. If you have heart disease, diabetes, or take medications (especially blood pressure medications or PDE5 inhibitors), discuss supplements with your doctor.
Tongkat Ali (Eurycoma longifolia)* is a Malaysian herb traditionally used to enhance male vitality. Research shows it may support healthy testosterone levels, particularly in stressed or aging men, and improve libido and sexual satisfaction.
L-Arginine* is an amino acid that the body converts to nitric oxide, which dilates blood vessels and improves blood flow. This is the same mechanism used by erectile dysfunction medications. Studies show L-arginine may improve erection quality, especially in mild to moderate erectile dysfunction.
Maca* is a Peruvian root used for centuries to enhance sexual desire and fertility. Research shows it may improve libido in both men and women, interestingly without directly affecting testosterone levels.
Zinc* is essential for testosterone production and sperm health. Deficiency significantly impairs sexual function. Many men are marginally deficient, and supplementation can restore normal testosterone levels in deficient individuals.
Panax Ginseng (Korean Red Ginseng)* is a well-studied adaptogen with evidence for improving erectile function. It may work through nitric oxide enhancement and antioxidant effects.
L-Citrulline* is converted to L-arginine in the body and may be even more effective for raising arginine levels long-term. Studies show it can improve erection hardness.
Ashwagandha* reduces stress and cortisol, which can suppress testosterone and libido. Studies show it may improve testosterone levels and sexual function, particularly in men experiencing stress-related issues.
Vitamin D* deficiency is associated with low testosterone and erectile dysfunction. Maintaining adequate levels supports hormonal health and overall vitality.
Fenugreek* contains compounds that may support healthy testosterone and improve libido. Studies in healthy young men show improvements in sexual function and satisfaction.
Tribulus Terrestris* is a traditional herb for male sexual health, though research results are mixed. It may support sexual desire in some individuals.
Expected timeline: L-arginine and L-citrulline may show effects within weeks. Adaptogens like ashwagandha and tongkat ali: 4-8 weeks for full effects. Zinc (if deficient): improvements in 2-3 months. Consistent supplementation is important.