Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical journals and associations. We only use quality, credible sources to ensure content accuracy and integrity. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.Abbaspour B, et al. (2019). The effect of l-arginine and flaxseed on plasma testosterone concentration, semen quality and some testicular histology parameters in old broiler breeder roosters.
https://www.sciencedirect.com/science/article/abs/pii/S0093691X18307696Ansary J, et al. (2020). Potential health benefit of garlic based on human intervention studies: A brief overview.
https://pmc.ncbi.nlm.nih.gov/articles/PMC7402177/Aoki H, et al. (2011). Clinical assessment of a supplement of Pycnogenol® and L-arginine in Japanese patients with mild to moderate erectile dysfunction.
https://pubmed.ncbi.nlm.nih.gov/21618639/Bani II, et al. (2024). Effect of black garlic (Allium sativum) on gonadosomatic index, follicle-stimulating hormone level and spermatozoa quality: A study in monosodium glutamate-exposed rat model.
https://pmc.ncbi.nlm.nih.gov/articles/PMC11394169/Chauhan S, et al. (2022). Effect of standardized root extract of ashwagandha (Withania somnifera) on well‐being and sexual performance in adult males: A randomized controlled trial.
https://pmc.ncbi.nlm.nih.gov/articles/PMC9297375/Chen C, et al. (2019). Causal link between vitamin D and total testosterone in men: A Mendelian randomization analysis.
https://academic.oup.com/jcem/article/104/8/3148/5393291Clemesha CG, et al. (2019). ‘Testosterone boosting’ supplements composition and claims are not supported by the academic literature.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6920068/Dietary supplements. (2024).
https://www.fda.gov/food/dietary-supplementsHenkel RR, et al. (2013). Tongkat Ali as a potential herbal supplement for physically active male and female seniors–a pilot study.
https://pubmed.ncbi.nlm.nih.gov/23754792/Jia X, et al. (2020). L-Arginine alleviates the testosterone reduction in heat-treated mice by upregulating LH secretion, the testicular antioxidant system and expression of steroidogenesis-related genes.
https://pubmed.ncbi.nlm.nih.gov/32586418/Leisegang K, et al. (2022). Eurycoma longifolia (Jack) improves serum total testosterone in men: A systematic review and meta-analysis of clinical trials.
https://pmc.ncbi.nlm.nih.gov/articles/PMC9415500/Li Y, et al. (2020). A dose-response and meta-analysis of dehydroepiandrosterone (DHEA) supplementation on testosterone levels: Perinatal prediction of randomized clinical trials.
https://pubmed.ncbi.nlm.nih.gov/33045358/Lopresti AL, et al. (2019). A randomized, double-blind, placebo-controlled, crossover study examining the hormonal and vitality effects of Ashwagandha (Withania somnifera) in aging, overweight males.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6438434/Lotfi F, et al. (2021). Impacts of garlic extract on testicular oxidative stress and sperm characteristics in type 1 and 2 diabetic rats: An experimental study.
https://pmc.ncbi.nlm.nih.gov/articles/PMC8595912/Monson NR, et al. (2023). Association between vitamin D deficiency and testosterone levels in adult males: A systematic review.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10518189/Santos HO, et al. (2019). Use of medicinal doses of zinc as a safe and efficient coadjutant in the treatment of male hypogonadism.
https://www.tandfonline.com/doi/10.1080/13685538.2019.1573220?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmedSudeep HV, et al. (2020). A double blind, placebo-controlled randomized comparative study on the efficacy of phytosterol-enriched and conventional saw palmetto oil in mitigating benign prostate hyperplasia and androgen deficiency.
https://pmc.ncbi.nlm.nih.gov/articles/PMC7333342/Tian Y, et al. (2023). Efficacy of L-arginine and Pycnogenol® in the treatment of male erectile dysfunction: A systematic review and meta-analysis.
https://pmc.ncbi.nlm.nih.gov/articles/PMC10614297/Vitamin D. (2025).
https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional/Walther A, et al. (2019). Testosterone and dehydroepiandrosterone treatment in ageing men: Are we all set?
https://pmc.ncbi.nlm.nih.gov/articles/PMC7076306/Wu G, et al. (2021). Role of L-arginine in nitric oxide synthesis and health in humans.
https://pubmed.ncbi.nlm.nih.gov/34251644/Zinc. (2022).
https://ods.od.nih.gov/factsheets/Zinc-HealthProfessional/
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