Eating a high-protein diet can boost the release of a hunger-suppressing hormone, according to new study on mice. The research suggests that a diet rich in protein may be a good way to lose weight and keep it off. Mice fed a protein-heavy diet produced higher levels of an appetite-regulating protein called peptide YY (PYY), which has been linked to reduced appetite in human studies. What's more, the high-protein mice put on less fat than mice on a low-protein regime. The discovery boosts the theory that eating more protein might help to reduce appetite and lead to sustained weight loss,...