5 sources
Health Insiders relies on peer-reviewed studies, academic research institutions, and medical associations. We avoid using tertiary references. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.
[1] Icken D, Feller S, Engeli S, Mayr A, Müller A, Hilbert A, de Zwaan M. Caffeine intake is related to successful weight loss maintenance. Eur J Clin Nutr. 2016 Apr;70(4):532-4. doi: 10.1038/ejcn.2015.183. Epub 2015 Nov 11. PMID: 26554757.
[2] Talab, A. T., Abdollahzad, H., Nachvak, S. M., Pasdar, Y., Eghtesadi, S., Izadi, A., Aghdashi, M. A., Mohammad Hossseini Azar, M. R., Moradi, S., Mehaki, B., & Moradi, S. (2020). Effects of Chromium Picolinate Supplementation on Cardiometabolic Biomarkers in Patients with Type 2 Diabetes Mellitus: a Randomized Clinical Trial. Clinical Nutrition Research, 9(2), 97-106. https://doi.org/10.7762/cnr.2020.9.2.97
[3] Prasanth, M. I., Sivamaruthi, B. S., Chaiyasut, C., & Tencomnao, T. (2019). A Review of the Role of Green Tea (Camellia sinensis) in Antiphotoaging, Stress Resistance, Neuroprotection, and Autophagy. Nutrients, 11(2). https://doi.org/10.3390/nu11020474
[4] Fielding, R., Riede, L., Lugo, J. P., & Bellamine, A. (2018). l-Carnitine Supplementation in Recovery after Exercise. Nutrients, 10(3). https://doi.org/10.3390/nu10030349
[5] Barnes ME, Cowan CR, Boag LE, Hill JG, Jones ML, Nixon KM, Parker MG, Parker SK, Raymond MV, Sternenberg LH, Tidwell SL, Yount TM, Williams TD, Rogers RR, Ballmann CG. Effects of Acute Yohimbine Hydrochloride Supplementation on Repeated Supramaximal Sprint Performance. Int J Environ Res Public Health. 2022 Jan 25;19(3):1316. doi: 10.3390/ijerph19031316. PMID: 35162339; PMCID: PMC8835515.
Was This Article Helpful ?
Yes- No
![Disagree - No]()










This article changed my life!
This article was informative.
I have a medical question.
Ask a Question
This article contains incorrect information.
This article doesn’t have the information I’m looking for.
Feeling the difference with Obvi products!
I may not have started my collagen journey with a different brand but when I found Obvi I saw my hair and nails look THAT much better. I found out Obvi has literally six times the vitamins that the first brand, so kept using it!