>Why is one ok and one apparently bad for your kidneys?
It’s not. Theoretically, there’s some amount of protein that can cause kidney harm, especially for someone not consuming enough water, but it’s *a lot*.
I’m not sure what you’re reading, but maybe there’s concern that someone can consume larger quantities of protein powder than they’re likely to consume eating meat, and teens can engage in goofy peer pressure driven behavior that older people are less likely to.
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