Whey protein side effects 
Although whey protein is a natural substance in food, it is not 100 percent risk-free. There are some minor side effects of whey protein, you should know: 

Hypersensitivity 
Whey protein is from milk. In addition, whey protein contains a number of unrefined form of lactose a higher level. Therefore, the product may lead to the person who is allergic to dairy products and who’s lactose intolerance is a negative response. If you are experiencing symptoms following consumption of whey protein, please contact your doctor immediately: 

Rash or hives 
Itching 
Swelling of the lips, mouth, or throat 
Wheezing or difficulty breathing 
Excessive coughing 
Diarrhea or blood in the stool (especially infants) 
Vomiting 
Over-consumption 
Side effects of whey protein in the study, doctors found that some individuals who consume excessive amount of material, you may experience the following symptoms: 

Increase in stool frequency 
Fatigue 
Loss of appetite 
Headache 
Thirsty 
Bloating 
Cramps 
Other side effects 
Kidney problems: If the whey protein is to take over the development of long-term existence of the risk of kidney disease, including kidney stones. In any case, many experts still insist that there are risks, prudent personal consumption moderate whey protein. 

Liver problems: in some cases, whey protein has been found to cause liver damage related to ketosis. Ketosis is characterized by elevated levels of ketones in the blood, is considered very dangerous, because it can lead to liver damage may lead to liver stress. 

Joint issue: long-term consumption of whey protein can also lead to inadequate calcium deposits in the bones, which can lead to osteoporosis and other common problems.

Whey Protein Side Effects