how old should you be to take muscle milk or other muscle building substances?

Answer 1

if you are exercising regulary then your body can utilize the nutrients in such supplements more effeciently so age is not much of a factor. supplemental protein powders have been medically proven to be safe and effective for both men and women, the young and old.

Answer 2

Unless you have been diagnosed with osteoporosis or another type of disease that results in calcium deficiency, you shouldn't need to take supplements as a woman until the age of 17. Having said that, you should be getting @ least 3-4 servings of low- fat dairy each day

Answer 3

You shouldn't start bodybuilding until you are at least 16. The supplements you could use at any age.

Answer 4

You'd probably be better off asking a personal trainer if you're ready (or if you really need it.)