While the high-fat diet is touted to have several health benefits and has many takers, several studies have also linked it to adverse effects on the body, especially if followed for a long time. This diet may put a lot of stress on your kidneys and may lead to kidney stones. Even though keto is a high-fat diet (and not high-protein diet), the moderate increase in protein also needs to be carefully monitored, especially in those who are already suffering from chronic kidney disease or any other kind of kidney ailment.