Scientific researches show that increasing one's daily intake of protein derived from dairy products helps in muscle gain and in boosting the body's energy level. The nutritional benefits of dairy products has been ascribed to the component called whey protein. Since its discovery, whey protein gained much popularity among health enthusiasts and athletes, especially body builders.

Food supplement manufacturing companies also continue to develop new formulations to meet the increasing demand in the market.

However, there are some sectors from the health industry that express doubts regarding the efficacy and safety of whey protein. These people support the need for continuous research on the incidence of adverse effects of whey protein supplementation. They encourage accurate reporting of adverse effects of whey protein supplementation especially when taken in high amounts and within a long period of time. Below are examples of the claims of whey protein supporters and studies conducted that prove or disprove them.

Whey Protein and Cardiovascular Risk

Studies show that when a person increases his daily intake of whey protein and at the same time decreases his fat intake, a favorable modification in his blood lipid level is observed. This means a reduction in his risks for atherosclerosis and other cardiovascular diseases. However, as with other drugs and food supplements, excessive dosages should be avoided as these may pose certain hazards to his health.

Whey Protein and the Kidneys

The kidneys function in excreting waste materials from the body. These wastes are mainly derived from the degradation of protein. This has led to concerns from some people regarding the adverse effects of whey protein supplementation to the kidneys. It has been theorized that an increase in the intake of protein by the body may strain and damage the kidneys and cause dysfunction. However, there are no evidences that clearly support these speculations.

Whey Protein and Osteoporosis

It has been found from several studies that an increase in the intake of whey protein leads to an increase in the calcium level of urine. This observation was further evaluated to determine if there are adverse effects of whey protein supplementation to the bone. However, it has not been found to trigger bone loss and osteoporosis. In fact, whey protein actually helped in bone mineralization.

When taking whey protein and other types of food supplements, nutritionists and other health experts inform people not only of its health benefits but also possible side effects. In cases of existing medical conditions, a person should consult first his physician if it is safe to add any food supplement to his existing prescription. Finally, besides food supplements like whey protein, proper diet, exercise, and a healthy lifestyle all contribute in preventing diseases and maintaining a healthy body.