Answer:
The two types of skeletal muscle fibers are slow-twitch (type I) and fast-twitch (type II). Slow-twitch muscle fibers support long distance endurance activities like marathon running, while fast-twitch muscle fibers support quick, powerful movements such as sprinting or weightlifting.
No, in fact they are not. Fat is the body's way of storing large amounts of proteins to use for later. Foods like avocados and maybe even meat have helpful fat in them