Avocado
The protein in this fruit contains all nine essential amino acids, plus heart-healthy omega-3 fatty acids. It’s also been researched as a food that supports weight loss, and therefore metabolism.
Cheese
Cheese can be a part of a healthy diet, as long as you don’t overindulge. A cup of cheddar has around 25 g of protein—pair it with an apple for a satisfying afternoon snack.