There is so much fuss about whey protein in the fitness world these days. Body builders and athletes have hailed the immense benefits of this supplement. Meanwhile, others have raised concerns about possible side-effects. If you want to know all about whey protein and discover the truth behind its benefits and side-effects, read the rest of this article.

Whey protein describes a group of globular proteins derived from whey, a by-product of cheese from cow's milk. It has high levels of essential amino acids, is easily digestible, and is accorded with disease-fighting properties. Because it contains high levels of cysteine and glutathione, it has antioxidant properties for good health.

What are the benefits of whey protein? For starters, its high amino acid, low fat, and carbohydrate content make it good for the body. Some OBs have even recommended this to pregnant women to aid in the development of the baby inside the womb. Bodybuilders also find whey protein indispensable inasmuch as it helps them build muscle. It also helps athletes recover from injuries faster. Some have claimed that whey protein aids in fat loss and protects from degenerative diseases as well.

There are side-effects, however, that are well worth looking into. While more research and clinical tests still need to be conducted to validate these claims, these concerns ought to be put on the table to paint a whole picture of this food supplement.

The first concern is hinged on the fact that whey protein comes from cow's milk. Those with allergies to lactose might suffer an allergic reaction upon ingesting whey protein, albeit this might be mild in form since the lactose content isn't that substantial. Medical experts have also considered the possibility that in large amounts, whey protein might be dangerous to both the kidneys and the liver. Osteoporosis is also another possibility since the excessive amounts of protein can wreck havoc on the mineral density of bones, causing it to be brittle. There is also the possibility that long-term intake can make the blood more acidic. Other milder side-effects include weight gain and diarrhea.

While bodybuilders regularly take protein milkshakes before and after their workout to aid in muscle repair and growth, the truth of the matter is that there is no substantial medical claim yet that this is needed or has an added benefit in exercise training. In light of all these information, moderation is always the answer. When taken too much, any food, supplement or drink harms the body. This is the same for whey protein. In the face of its continued use, especially among those in the fitness world, body builders and athletes as well as other whey protein enthusiasts should be warned that the side effects do not manifest themselves right away. It shows itself over a period of time. And since conclusive studies as regards its safety have not been thoroughly conducted yet, it is best to be prudent. Until that day comes when these authoritative reports have been established, it's a safe practice to take whey protein in judicious amounts.