Whey proteins are the premium source of protein supplements for the body builders. However, it is advisable to consume these supplements with extra precautions as they are associated with both minor and major side effects. One of the most common side effects of its intake is allergic reactions of sorts. This is particularly observed among those people who have developed intolerance towards lactose. Such people find difficulties in digesting and absorbing sugar innate in milk. Since whey protein is a derivate of milk, intolerant people find it hard to cope with this other beneficial supplement.
 
Further, excessive presence of whey proteins in the body tends to make the blood acidic. This literally impairs the kidney’s function to metabolize the ingested proteins. In addition, the presence of acidic blood in the body for a long time increases one’s susceptibility towards osteoporosis. This condition arises when the calcium deposited in the bones is used excessively to turn the acidic nature of the blood back to basic. This makes the bones weaker and fragile in the following time. On the other hand, the amount of calcium that remains unexhausted starts depositing in the kidneys. This increases the risk for the development of stones in the kidneys which can be extremely dangerous if left unattended for long.