Does eating protein help you feel full?

Scientific studies have found that eating a protein-rich meal does indeed generate the feeling of satiety. Peptides, which are produced when you digest dietary proteins, block mu opioid receptors (MORS) on nerves found in the major blood vessel that drains blood from the gut. These receptors modulate food intake and so blocking them curbs your appetite. In addition, peptides also send signals to the brain that then stimulates the intestine to release glucose, suppressing your desire to eat.

Eggs, fish, nuts and meat are all good sources of protein