Question

How does a low-protein and low-fat intake affect energy metabolism?

Answer 1

Insufficient protein in your diet reduces lean body mass, muscle strength, and function. Not consuming enough protein can also cause muscle cramping, weakness, and soreness. Your body will take protein from muscle tissue and use it as energy to support other vital body functions when protein is low.

Not getting enough fat (or carbs, or protein) means your body isn't getting enough calories. People who eat less fat tend to eat more carbs, and more carbs with less fat is a combination that can leave you feeling hungry a lot.