Protein was one of the biggest food trends of 2025, showing up everywhere from snack aisles to coffee menus. Packaged food brands boosted protein in cookies and chips, social media users scrutinized unexpected sources, and Starbucks leaned into higher-protein drink options. As we head deeper into 2026, the fixation shows no signs of slowing — and for good reason. Protein's documented benefits — supporting muscle health, promoting fullness, helping keep energy levels steady th