All the same: Your body uses mostly carbohydrate for energy, and then some fat is broken down to replenish lost calories if you're losing weight. Muscle is only broken down in starvation, cancer, severe disease or long-term illness.
Answered 5/28/2013
5.1k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question