REFERENCES
1. Tribulus Terrestris
Rogerson S, Riches CJ, Jennings C, Weatherby RP, Meir RA, Marshall-Gradisnik SM. The effect of five weeks of Tribulus terrestris supplementation on muscle strength and body composition during preseason training in elite rugby league players. J Strength Cond Res 2007;21:348-53.
De Combarieu E, Fuzzati N, Lovati M, Mercalli E. Furostanol saponins from Tribulus terrestris. Fitoterapia 2003;74:583-91.
https://www.ncbi.nlm.nih.gov/pubmed/26727646
2. Fenugreek
Maheshwari, A., Verma, N., Swaroop, A., Bagchi, M., Preuss, H., Tiwari, K. and Bagchi, D. (2017). Efficacy of FurosapTM, a novel Trigonella foenum-graecum seed extract, in Enhancing Testosterone Level and Improving Sperm Profile in Male Volunteers. [online] Medsci.org.
3. DHEA
Papierska, L., Rabijewski, M., Kasperlik-Załuska, A. and Zgliczyński, W. (2012). Effect of DHEA supplementation on serum IGF-1, osteocalcin, and bone mineral density in postmenopausal, glucocorticoid-treated women. Adv Med Sci. 2012 Jun 1;57(1):51-7.
4. Ashwagandha Root
Chandrasekhar, K., Kapoor, J. and Anishetty, S. (2012). A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian J Psychol Med., 34(3), pp.255-62.
5. Vitamin B6
Institute of Medicine. Food and Nutrition Board. Dietary Reference Intakes: Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Cholineexternal link disclaimer. Washington, DC: National Academy Press; 1998. -- https://www.nap.edu/catalog/6015/dietary-reference-intakes-for-thiamin-riboflavin-niacin-vitamin-b6-folate-vitamin-b12-pantothenic-acid-biotin-and-choline
Mackey A, Davis S, Gregory J. Vitamin B6. In: Shils M, Shike M, Ross A, Caballero B, Cousins R, eds. Modern Nutrition in Health and Disease. 10th ed. Baltimore, MD: Lippincott Williams & Wilkins; 2005.
https://www.ncbi.nlm.nih.gov/pubmed/16763894
https://www.ncbi.nlm.nih.gov/pubmed/18494537
https://www.ncbi.nlm.nih.gov/pubmed/10683000
6. Vitamin B12
Gueant JL, Safi A, Aimone-Gastin I, Rabesona H, Bronowicki J P, Plenat F, et al. Autoantibodies in pernicious anemia type I patients recognize sequence 251-256 in human intrinsic factor. Proc Assoc Am Physicians 1997;109:462-9.