(Pictured: nutrition label of a whey Protein Isolate product)
Although it shouldn't be EVERYONE's preference, Whey Protein Isolate is one of the most complete forms of protein currently available in the market.
Whey Protein Isolate lacks carbohydrates, fats, cholesterol & lactose. A serving contains a high amount of protein and BCAA (Branched Chain Amino Acid), which are the building blocks of protein. This type of protein is ideal for those looking to add lean body weight (muscle) & preserve it when they're in the process of losing body fat while timing the consumption of this and other foods.
The most common type of Whey Protein Isolate that you can purchase is in powder form. They come in different brands and flavoring & they are designed to be mixed with either water or milk to make a healthier snack or small meal. You can also find them in RTDs (Ready To Drink) made by various brands/companies that are just as good as the powdered form. The best time to consume is either before and/or immediately following your workout for optimal muscular growth/conditioning.
Although more scientific studies should be taken, some say whey protein isolate may improve digestion. It can help regulate bowel movement, and it can be consumed by those who are lactose intolerant. Just like all other food items I post, it's important for you to consult with your primary physician or nutritionist before making the decision to incorporate this food into your diet.