Do I need protein powder for exercise, and can it affect my kidneys?
Food can meet protein needs for many people who exercise; powder may help bridge a dietary gap or practical difficulty. It does not build muscle on its own. An appropriate intake does not automatically damage healthy kidneys, but kidney disease requires individualized protein advice.
Details
Count the total, not just scoops
Protein in meals contributes to the daily total. Appropriate intake depends on training, diet, goals and health, alongside sufficient energy and progressive resistance exercise. Continually adding powder does not guarantee additional muscle.
Kidney disease changes the plan
Some people with kidney disease who are not receiving dialysis may need less protein, while dialysis often increases requirements. Do not follow a friend’s or trainer’s general prescription when you have kidney disease or a medical nutrition plan.
Read the ingredients
Check for milk or soy allergens, added sugar, stimulants and other ingredients. Choose a clearly labelled product from a reliable source; independent testing does not prove that you need it. Discuss high-dose or prolonged use rather than assuming more is always safe.
Related reading: How can I tell whether I need vitamin and mineral supplements?.