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• Alcalde AM, Rabasa J. Does Lepidium meyenii (Maca) improve seminal quality?. Andrologia. 2020;52(10):e13755. doi:10.1111/and.13755
• Baltaci AK, Mogulkoc R, Baltaci SB. Review: The role of zinc in the endocrine system. Pak J Pharm Sci. 2019;32(1):231-239.
• Berry NM, Robinson MJ, Bryan J, Buckley JD, Murphy KJ, Howe PR. Acute effects of an Avena sativa herb extract on responses to the Stroop Color-Word test. J Altern Complement Med. 2011;17(7):635-637. doi:10.1089/acm.2010.0450
• Biswas TK, Pandit S, Mondal S, et al. Clinical evaluation of spermatogenic activity of processed Shilajit in oligospermia. Andrologia. 2010;42(1):48-56. doi:10.1111/j.1439-0272.2009.00956.x
• Black Pepper Extract - A Natural Bioavailability Enhancer - BioPerine®. BioPerine®. Published March 23, 2021. 
• Chen C, Zhai H, Cheng J, et al. Causal Link Between Vitamin D and Total Testosterone in Men: A Mendelian Randomization Analysis. J Clin Endocrinol Metab. 2019;104(8):3148-3156. doi:10.1210/jc.2018-01874
• Chhatre S, Nesari T, Somani G, Kanchan D, Sathaye S. Phytopharmacological overview of Tribulus terrestris. Pharmacogn Rev. 2014;8(15):45-51. doi:10.4103/0973-7847.125530
• D'Andrea S, Martorella A, Coccia F, et al. Relationship of Vitamin D status with testosterone levels: a systematic review and meta-analysis. Endocrine. 2021;72(1):49-61. doi:10.1007/s12020-020-02482-3
• Fallah A, Mohammad-Hasani A, Colagar AH. Zinc is an Essential Element for Male Fertility: A Review of Zn Roles in Men's Health, Germination, Sperm Quality, and Fertilization. J Reprod Infertil. 2018;19(2):69-81.
• Gonzales-Arimborgo C, Yupanqui I, Montero E, et al. Acceptability, Safety, and Efficacy of Oral Administration of Extracts of Black or Red Maca (Lepidium meyenii) in Adult Human Subjects: A Randomized, Double-Blind, Placebo-Controlled Study. Pharmaceuticals (Basel). 2016;9(3):49. Published 2016 Aug 18. doi:10.3390/ph9030049
• Lampariello LR, Cortelazzo A, Guerranti R, Sticozzi C, Valacchi G. The Magic Velvet Bean of Mucuna pruriens. J Tradit Complement Med. 2012;2(4):331-339. doi:10.1016/s2225-4110(16)30119-5
• Leung KW, Wong AS. Ginseng and male reproductive function. Spermatogenesis. 2013;3(3):e26391. doi:10.4161/spmg.26391
• Maheshwari A, Verma N, Swaroop A, et al. Efficacy of FurosapTM, a novel Trigonella foenum-graecum seed extract, in Enhancing Testosterone Level and Improving Sperm Profile in Male Volunteers. Int J Med Sci. 2017;14(1):58-66. Published 2017 Jan 10. doi:10.7150/ijms.17256
• Melnikovova I, Fait T, Kolarova M, Fernandez EC, Milella L. Effect of Lepidium meyenii Walp. on Semen Parameters and Serum Hormone Levels in Healthy Adult Men: A Double-Blind, Randomized, Placebo-Controlled Pilot Study. Evid Based Complement Alternat Med. 2015;2015:324369. doi:10.1155/2015/324369
• Neychev V, Mitev V. Pro-sexual and androgen enhancing effects of Tribulus terrestris L.: Fact or Fiction. J Ethnopharmacol. 2016;179:345-355. doi:10.1016/j.jep.2015.12.055
• Nielsen FH. Is boron nutritionally relevant?. Nutr Rev. 2008;66(4):183-191. doi:10.1111/j.1753-4887.2008.00023.x
• Pandit S, Biswas S, Jana U, De RK, Mukhopadhyay SC, Biswas TK. Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers. Andrologia. 2016;48(5):570-575. doi:10.1111/and.12482
• Pilz S, Frisch S, Koertke H, et al. Effect of vitamin D supplementation on testosterone levels in men. Horm Metab Res. 2011;43(3):223-225. doi:10.1055/s-0030-1269854
• Pizzorno L. Nothing Boring About Boron. Integr Med (Encinitas). 2015;14(4):35-48.
• Prasad AS, Mantzoros CS, Beck FW, Hess JW, Brewer GJ. Zinc status and serum testosterone levels of healthy adults. Nutrition. 1996;12(5):344-348. doi:10.1016/s0899-9007(96)80058-x
• Steels E, Rao A, Vitetta L. Physiological aspects of male libido enhanced by standardized Trigonella foenum-graecum extract and mineral formulation. Phytother Res. 2011;25(9):1294-1300. doi:10.1002/ptr.3360
• Ștefănescu R, Tero-Vescan A, Negroiu A, Aurică E, Vari CE. A Comprehensive Review of the Phytochemical, Pharmacological, and Toxicological Properties of Tribulus terrestris L. Biomolecules. 2020;10(5):752. Published 2020 May 12. doi:10.3390/biom10050752
• Talbott SM, Talbott JA, George A, Pugh M. Effect of Tongkat Ali on stress hormones and psychological mood state in moderately stressed subjects. J Int Soc Sports Nutr. 2013;10(1):28. Published 2013 May 26. doi:10.1186/1550-2783-10-28
• Tomita-Yokotani K, Hashimoto H, Fujii Y, Nakamura T, Yamashita M. Distribution of L-DOPA in the root of velvet bean plant (Mucuna pruriens L.) and gravity. Biol Sci Space. 2004;18(3):165-166.
• Tsujimura A. The Relationship between Testosterone Deficiency and Men's Health. World J Mens Health. 2013;31(2):126-135. doi:10.5534/wjmh.2013.31.2.126