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If you want the actual research on these five go to Authority Nutrition and get the articles from them. They are a great resource to get nutritional information.
So here is the list:
Caffeine
Green Tea Extract
Protein Powder
Soluble Fiber
Yohimbine
Others that may help in weight loss are: 5-htp, Synephrine, Green Coffee Bean Extract, CLA, L-Carnitine.
Request an appointment with Dr. Olsen.
AUTHORITY NUTRITION
Evidence Based 9/2017