(1)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374095/: Effects of β-alanine supplementation on exercise performance: a meta-analysis
(4)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5295087/: Effects of Beetroot Juice Supplementation on Cardiorespiratory Endurance in Athletes. A Systematic Review
(5)https://www.ncbi.nlm.nih.gov/pubmed/19781622: A pilot investigation into the effect of maca supplementation on physical activity and sexual desire in sportsmen
(6)https://www.ncbi.nlm.nih.gov/books/NBK299045/: Chapter 9Acute and Chronic Effects of Antioxidant Supplementation on Exercise Performance
(7)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3110835/: Effect of Cs-4® (Cordyceps sinensis) on Exercise Performance in Healthy Older Subjects: A Double-Blind, Placebo-Controlled Trial
(8)https://www.hindawi.com/journals/ecam/2014/979613/: Improving Training Condition Assessment in Endurance Cyclists: Effects of Ganoderma lucidum and Ophiocordyceps sinensis Dietary Supplementation
(9)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3808124/: Citrus aurantium and Rhodiola rosea in combination reduce visceral white adipose tissue and increase hypothalamic norepinephrine in a rat model of diet-induced obesity
(10)https://www.ncbi.nlm.nih.gov/pubmed/16216810: Rhodiola rosea as antioxidant in red blood cells: ultrastructural and hemolytic behaviour.
(11)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3659633/: Actoprotective effect of ginseng: improving mental and physical performance
(12)https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4123567/: Consumption of Green Coffee Reduces Blood Pressure and Body Composition by Influencing 11β-HSD1 Enzyme Activity in Healthy Individuals: A Pilot Crossover Study Using Green and Black Coffee
(13)https://www.ncbi.nlm.nih.gov/pubmed/25636220: Effects of medium-chain triglycerides on weight loss and body composition: a meta-analysis of randomized controlled trials.