With the amount of supplements on the market at the minute and the vast marketing placed behind all of them its hard to really know which ones are beneficial to your training, and which ones are just hype with no scientific evidence to back up their claims.
Whey protein has to be the most common supplement name known by the vast majority of gym goers and easily the most popular among them. For good reason I might add once people see the benefits that it can actually provide to those people who are training on a regular basis.
Protein is used for repair in the body, particularly after intense bouts of exercise where muscles are broken down. Whey protein is a fast and easy method to supply muscles with the building blocks they need for growth and repair in the form of branched chain amino acids, as Whey contains one of the highest quantity of these as any natural food source.
It is fast acting and can be taken straight after a workout without the need to sit down to a full meal. The recommended window of protein consumption after activity is 0-30 minutes for best results or within the first hour at the very least. Outside of this the levels of cortisol, a stress hormone released by the body will begin to rise and these in turn inhibit muscle growth and repair.
Outside of convenience it can also be used as a quick snack which is very useful not only for maintaining muscle mass with the quantity of protein contained within it, but can also aid in weight loss depending on the brand selected as it can provide a low calorie/low carbohydrate snack alternative.
These are just a few of the options the plus points that Whey protein can provide for active people but there are many more but these will be left to another article. Remember the right training schedule is only half the job. To achieve all of your desired results this must be coupled with the right nutritional planning, supplementation and resting schedule.