Which protein source is known for being high-quality and providing slow release in the body?

Casein protein is recognized for its high-quality profile and its unique property of providing a slow release of amino acids into the bloodstream. This gradual digestion and absorption process makes casein an ideal choice for meal timing, particularly before periods of fasting, such as overnight or between meals.

The nature of casein allows it to curdle in the stomach, which leads to a more extended period before it is broken down and absorbed. This slow-release mechanism can be beneficial for muscle recovery and preventing muscle breakdown, especially during times when the body is not receiving regular nutrient intake. Athletes and individuals looking to optimize their muscle protein synthesis often include casein in their nutrition plan for its sustained amino acid delivery.

In contrast, while other protein sources like whey protein are also high-quality, they are digested and absorbed more quickly, leading to a rapid spike in amino acids. Soy protein provides a good plant-based alternative, but it typically has a lower biological value compared to casein and whey. Egg protein is another excellent source but does not offer the same slow release as casein. Hence, casein protein stands out as the best choice for those seeking a high-quality protein that provides a slow release in the body.