Dr. Özgür Kılıç, from the Department of Internal Medicine, Division of Internal Medical Sciences, Faculty of Medicine at Ondokuz Mayıs University (OMU), stated:

“It is generally known that protein powders are safe for individuals with normal kidney function. However, in people with kidney disease, excessive protein intake may place an additional burden on the kidneys. For this reason, individuals who are at risk of kidney disease should definitely consult their physicians before using protein powder.”

Emphasizing that protein is a fundamental building block for muscle formation, the immune system, and many vital processes, Dr. Özgür Kılıç noted that adequate protein intake is particularly important for muscle repair and development in physically active individuals, while also warning that excessive use of protein supplements can lead to serious health problems. Stating that physicians should always be consulted before using protein powder, Dr. Kılıç said:

“Protein powders can help muscles recover after intense exercise. It may not always be possible to meet daily protein requirements through balanced meals alone; therefore, protein powders can offer a practical alternative for individuals with a busy lifestyle. In addition, protein can contribute to weight control by increasing the feeling of satiety. However, the amount must be properly adjusted. In society, protein powders are often perceived as products intended only for bodybuilders. In fact, protein powders can be used not only by athletes, but also by elderly individuals with increased protein needs or by those following a vegan diet.”

“Consuming more protein does not accelerate muscle development”

Stating that muscle development requires sufficient protein intake combined with balanced nutrition and regular exercise, Dr. Kılıç said:

“It is generally known that protein powders are safe for individuals with normal kidney function. However, in people with kidney disease, excessive protein intake may place an additional burden on the kidneys. Therefore, individuals who are at risk of kidney disease should definitely consult their physicians before using protein powder. The belief that consuming more protein will accelerate muscle development is also incorrect. The amount of protein the body can utilize at one time is limited. Excess protein does not contribute to muscle building; it may be converted into energy or stored. For muscle development, adequate protein intake must be accompanied by balanced nutrition and regular exercise. It is also incorrect to assume that all protein powders are the same. There are different types such as whey, casein, soy, pea, and egg protein. The choice of protein type should be made according to individual needs and intolerances. For example, plant-based proteins may be more suitable for individuals with lactose intolerance.”

“Protein powders contribute when used in the right amount and consciously”

Stating that the belief that protein powders alone cause weight gain is incorrect, Dr. Kılıç continued as follows:

“It is not true that protein powders alone cause weight gain. Weight gain is associated with excessive calorie intake and insufficient physical activity. On the contrary, protein can support metabolism when combined with regular exercise. However, protein alone is not sufficient for weight control. There are concerns that protein powders may contain harmful chemicals. Reputable brands undergo quality control processes; however, low-quality products may contain additives. Therefore, it is important to read product labels and choose reliable brands. In conclusion, protein powders can contribute to healthy nutrition when used in the correct amount and consciously. However, excessive use should be avoided, and instead of focusing solely on protein powders, a balanced diet and regular exercise habits should be adopted.”