What is the classification and indication for vitmain C?
& insulin?

Microbes in the gut ferment fiber and complex carbohydrates and form vitamins, short chain fatty acids and

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.

What does fi stand for in the fitt-vp principle of exercise prescription?