It is important to supplement your body with the protein it requires when taking on any exercise programme. As your energy expenditure increases as does your bodies need for this nutrient. 

Protein supplements or powders come in many forms with varying speeds of release. The most common forms are Whey, Casein and Egg. Whey protein has the highest biological value of all proteins and is most suitable post exercise due to its fast absorbtion rate. It is important to get protein into the body within an hour of exercise to counteract any catabolic processes, Whey protein allows the user to quickly and efficiently to get the aminos into their system and kick start the repair and recovery process. It is also useful to take first thing in the morning as the body will have been depleted of protein over night and will be in a fasting or catabolic state. Due to its quick release this protein is not best suited to anything other than post workout or first thing in the morning. Have a look at CNP Whey Protein, Reflex Instant Whey, and also USN 100% Whey Protein.

Casein protein is best suited for periods of time where the user will not be able to ingest protein on a regular basis, such as over night or when the user has not been able to prepare adequite meals to be eaten on the 2-3 hourly basis. Casein is different in that it has an ability to form a gel or clot in the stomach. This gives the body very efficient in nutrient supply. Two products which have nee specifically developed to be used as a night-time shake are Boditronics Midnight Express and Reflex Micellar Casein). The clot is able to provide a sustained slow release of amino acids into the blood stream, which can last for several hours. Blended protein powders, such as CNP Pro Peptide, Reflex Peptide Fusion, and USN Pure Protein, are also now available which can provide the best traits of both.