Dietitian Examines Protein Coffee’s Health Claims

Protein coffee, or “proffee,” is a flexible drink category rather than a single recipe. It usually combines brewed coffee or espresso with either a prepared protein shake or powdered protein. Many versions are served cold because ready-made shakes are chilled and some powders mix poorly in hot liquids.

Its benefits come from familiar ingredients, not a special effect unique to the drink. Caffeine may increase alertness, while protein can soften blood sugar swings and support longer-lasting fullness and energy. Morning protein may also reduce cravings related to changing blood sugar, though cravings can have other causes, including emotions, hormones, nutrient deficiencies, or overly restrictive eating. Someone replacing black coffee or a skipped breakfast with proffee may feel a difference because the new drink supplies protein and calories. A person already eating a protein-rich breakfast may notice little change.

Dietary protein helps the body repair muscle tissue after activities such as weight lifting and supports muscle development. Proffee can therefore be useful for someone who has difficulty getting enough protein, particularly alongside resistance exercise and an otherwise healthy, balanced diet. But eggs, yogurt, shakes, and other protein sources can offer the same core benefits, while whole foods may add nutrients such as choline and vitamin B12. Whether protein coffee is worthwhile depends on the person’s needs and broader eating pattern. Its main appeal is a quick, practical source of protein—not a uniquely healthier choice or a replacement for a varied diet.