1. MacLean DB, Luo LG. Increased ATP content/production in the hypothalamus may be a signal for energy-sensing of satiety: Studies of the anorectic mechanism of a plant steroidal glycoside. Brain Res 2004;1020:1-11.
2. Blom WA, Abrahamse SL, Bradford R, et al. Effects of 15-d repeated consumption of Hoodia gordonii purified extract on safety, ad libitum energy intake, and body weight in healthy, overweight women: a randomized controlled trial. Am J Clin Nutr 2011;94:1171-81.
3. Landor M, Benami A, Segev N, et al. Efficacy and acceptance of a commercial Hoodia parviflora product for support of appetite and weight control in a consumer trial. J Med Food 2015 Feb;18(2):250–8.
4. Thompson G. Bushmen squeeze money from a humble cactus. New York Times 2003 Apr 1;Sect. A:4 (col 3).