Of the following, which is likely to have the least effect on improving endurance performance?
a. Training
b. Dietary supplements containing caffeine
c. Ingesting carbohydrate when exercising over three hours
d. Ingesting fluid to match fluid losses
Question 2
According to scientific research, the dietary supplement most likely to improve performance is:
a. chromium picolinate.
b. antioxidant vitamins.
c. creatine.
d. branched chained amino acids.