Does the protein type affect how full I feel?
Yes — different proteins digest at different speeds, which can influence how long you feel satisfied:
- Casein protein: Slow-digesting, creating a steady release of amino acids. It’s often the most filling option, making it great before bed or between meals.
- Whey protein (isolate or concentrate): Fast-digesting, ideal for quick recovery after workouts, but generally less filling than casein.
- Protein blends: Offer a mix of fast- and slow-digesting proteins, giving a balance of immediate recovery and longer satiety.
- Plant-based proteins: Many (like pea protein) are naturally more filling due to higher fibre content.
So if fullness is a priority, look for casein, blends, or fibre-rich plant proteins.