12. What is one of the healthful food guidelines set by the USDA? Get the most nutrition out of your calories.

Eat the same foods every day.

Eat the foods you like the most.

Eat a variety of foods from all four food groups!

If you were running a marathon, which type of muscle fibers would be most useful to you? a. slow-twitch b. fast-twitch, type i a c. intermediate-twitch, type ii b d. slow-intermediate twitch, type i b select the best answer from the choices provided. a b c d