Energy Beverages: Content and Safety, John P. Higgins Mayo Clin Proc. 2010 Nov; 85(11): 1033–1041 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2966367/

International Society of Sports Nutrition position stand: energy drinks 
Journal of the International Society of Sports Nutrition201310:1 
https://jissn.biomedcentral.com/articles/10.1186/1550-2783-10-1

Dietary supplement increases plasma norepinephrine, lipolysis, and metabolic rate in resistance trained men; 
Richard J Bloomer; J Int Soc Sports Nutr. 2009; 6: 4. 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2645359/

Efficacy and safety of a popular thermogenic drink after 28 days of ingestion;  
Michael D Roberts J Int Soc Sports Nutr. 2008; 5: 19 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2579279/

Regulation of muscle glycogenolytic flux during intense aerobic exercise after caffeine ingestion 
Chesley A, Howlett RA; Am J Physiol. 1998 Aug 
https://www.ncbi.nlm.nih.gov/pubmed/9688698

International society of sports nutrition position stand: caffeine and performance 
Journal of the International Society of Sports Nutrition2010 7:5 
https://jissn.biomedcentral.com/articles/10.1186/1550-2783-7-5

Influence of age on the thermic response to caffeine in women 
Arciero PJ, Bougopoulos CL; Metabolism. 2000 Jan 
https://www.ncbi.nlm.nih.gov/pubmed/10647072

Coffee, hunger, and peptide YY Greenberg JA1, Geliebter A.; J Am Coll Nutr. 2012 Jun;31(3):160-6 https://www.ncbi.nlm.nih.gov/pubmed/23204152

Does caffeine alter muscle carbohydrate and fat metabolism during exercise? 
Graham TE, Battram DS; Appl Physiol Nutr Metab. 2008 Dec;33(6):1311-8. https://www.ncbi.nlm.nih.gov/pubmed/19088793

Metabolic and physiological effects of ingesting extracts of bitter orange, green tea and guarana at rest and during treadmill walking in overweight males; 
International Journal of Obesity volume30, pages764–773 (2006) 
https://www.nature.com/articles/0803209

Experience (Mostly Negative) with the Use of Sympathomimetic Agents for Weight Loss 
Mario A. Inchiosa, Jr.; J Obes. 2011; 2011: 764584 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2931409/

Acute consumption of p-synephrine does not enhance performance in sprint athletes; 
Gutiérrez-Hellín J; Appl Physiol Nutr Metab. 2016 Jan 
https://www.ncbi.nlm.nih.gov/pubmed/26673246

The effects of supplementation with P-Synephrine alone and in combination with caffeine on resistance exercise performance 
Ratamess NA1, Bush JA; J Int Soc Sports Nutr. 2015 Sep 17 
https://www.ncbi.nlm.nih.gov/pubmed/26388707

Chromium picolinate supplementation for overweight or obese adults 
Tian H, Guo X; Cochrane Database Syst Rev. 2013 Nov 29 
https://www.ncbi.nlm.nih.gov/pubmed/24293292

Effects of chromium picolinate on food intake and satiety;  
Anton SD, Morrison CD; Diabetes Technol Ther. 2008 Oct 
https://www.ncbi.nlm.nih.gov/pubmed/18715218

Chromium picolinate does not improve key features of metabolic syndrome in obese nondiabetic adults 
Iqbal N, Cardillo S; Metab Syndr Relat Disord. 2009 Apr 
https://www.ncbi.nlm.nih.gov/pubmed/19422140

The effectiveness of long-term supplementation of carbohydrate, chromium, fibre and caffeine on weight maintenance Pasman WJ, Westerterp-Plantenga MS; Int J Obes Relat Metab Disord. 1997 Dec 
https://www.ncbi.nlm.nih.gov/pubmed/9426382

Long term pharmacotherapy for obesity and overweight: updated meta-analysis 
BMJ. 2007 Dec 8; Diana Rucker, 
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2128668/

Long-term persistence with orlistat and sibutramine in a population-based cohort 
Padwal R, Kezouh A; Int J Obes (Lond). 2007 Oct 
https://www.ncbi.nlm.nih.gov/pubmed/17420781

Comparative evaluation of fecal fat excretion induced by orlistat and chitosan 
Guerciolini R, Radu-Radulescu L; Obes Res. 2001 Jun 
https://www.ncbi.nlm.nih.gov/pubmed/11399783

Effect of Orlistat on Weight Regain and Cardiovascular Risk Factors Following a Very-Low-Energy Diet in Abdominally Obese Patients 
Bjørn Richelsen, MD, PHD; Diabetes Care 2007 Jan; 30(1): 27-32. 
http://care.diabetesjournals.org/content/30/1/27

Weight control and risk factor reduction in obese subjects treated for 2 years with orlistat: a randomized controlled trial. 
Davidson MH, Hauptman J; JAMA. 1999 Jan 20 
https://www.ncbi.nlm.nih.gov/pubmed/9918478

XENical in the prevention of diabetes in obese subjects (XENDOS) study: a randomized study of orlistat as an adjunct to lifestyle changes for the prevention of type 2 diabetes in obese patients 
Torgerson JS, Hauptman J; Diabetes Care. 2004 Jan 
https://www.ncbi.nlm.nih.gov/pubmed/14693982

Randomised placebo-controlled trial of orlistat for weight loss and prevention of weight regain in obese patients. 
European Multicentre Orlistat Study Group. Sjöström L, Rissanen A; Lancet. 1998 Jul 18 https://www.ncbi.nlm.nih.gov/pubmed/9683204

Long-term maintenance of weight loss with sibutramine in a GP setting following a specialist guided very-low-calorie diet: a double-blind, placebo-controlled, parallel group study 
European Journal of Clinical Nutrition volume59, pagesS31–S39 (2005) 
https://www.nature.com/articles/1602172

Sibutramine produces dose-related weight loss 
Bray GA, Blackburn GL; Obes Res. 1999 Mar;7(2):189-98 
https://www.ncbi.nlm.nih.gov/pubmed/10102256