Senekal, Marjanne, Shelly Meltzer, Anri Horne, Nicole CG Abrey, Lauren Papenfus, Stefan van der Merwe, and Norman J Temple. “Dietary Supplement Use in Younger and Older Men Exercising at Gyms in Cape Town”. South African Journal of Clinical Nutrition 34, no. 1 (July 12, 2021). Accessed April 24, 2024. http://www.sajcn.co.za/index.php/SAJCN/article/view/1521.