Whey protein products are used by athletes and body builders because it helps the body bulk up with lean muscles fast. The desired side effect of whey is to put on lean mass. But when using any product, there are also less desirable side effects that can be damaging if unmonitored.

Whey comes from milk. It is the by-product of cheese production after it has been curdled and strained. Because whey comes from milk, one of the possible side-effects is lactose intolerance. This sort of condition is quite common to people who cannot take in milk and milk based products. People with this condition do not have the ability to break down milk and dairy products. Some of the effects of lactose intolerance are flatulence, bloating and stomach cramps.

Since whey is a by-product, the liver can also suffer some damage when there is over consumption of whey products. A condition called Ketosis can sometimes occur due to the over presence of ketones in the blood. This happens when there is too much protein consumption making the liver stressed which usually leads to kidney damage.

The calcium in milk can also form kidney stones. The body can only absorb as much calcium as it can and the unused calcium is deposited in the kidneys where it can become stones. Another possible side effect is the increase in blood pH levels which can lead to osteoporosis, joint problems and liver stress.

Studies and research on the long-term side effects of whey and whey products are still undergoing. The heart of the matter is on consumption levels rather than on the product itself. There are a lot of whey supplements available in the market such as Optimum Nutrition, Now Foods, Elite Whey, Jay Robb and Whey Gold Standard that provide all the benefits of using whey to build lean mass.

Keep in mind that anything consumed in excess will always have detrimental effects on the body. Research and professional help as well as a trip to the nutritionist will help keep any problems regarding whey and its side effects to zero or the barest minimum. A balanced diet and exercise will always go a long way towards preserving over all health.