Casein Protein Powder

About

Last Updated: Monday 12th October 2026 Part of our full protein powder range. What Is Casein Protein? Casein is a slow-digesting dairy protein that makes up around 80% of the protein in cow's milk. In the stomach it forms a gel-like texture that digests gradually, providing a steady release of amino acids over several hours. That slow release is why casein protein powder is often called a night-time protein. Where whey protein is digested quickly and suits post-workout recovery, casein is designed for longer stretches without food, such as overnight or between meals. Benefits of Casein Protein Powder Night-time protein: a slow-release option before bed to support overnight muscle recovery Helps you feel fuller: slower digestion can help keep you satisfied between meals Supports muscle maintenance: a sustained protein source during long gaps between meals Thick, creamy texture: ideal for puddings, custards and protein desserts Casein vs Whey Protein Whey: fast digesting, best around training for quick recovery Casein: slow digesting, best before bed or between meals Many people use both: whey during the day and casein at night. Research suggests consuming protein before sleep can support overnight muscle protein synthesis when combined with regular resistance training. Types of Casein Protein Micellar casein: the slowest-digesting form, used in most night-time protein powders Casein blends: combine casein with other proteins for a mix of fast and slow release Casein custards and desserts: thick, spoonable protein puddings made with casein, perfect as a high-protein treat Popular Casein Protein Powders Gold Standard 100% Casein by Optimum Nutrition : a classic micellar casein shake 8 Hour Night by Genetix Nutrition : designed as a slow-release night-time protein Anabolic Night by Max's Supplements : a popular night-time protein blend R1 Casein by Rule 1 Proteins : a straightforward casein protein powder Burn Sleep Protein by Maxine's : a night-time protein designed fo