[libh8er]

It’s hard on the kidneys and could lead to kidney failure. Should guzzle large amounts of water while on this diet.

[corkoman]

It’s hard on the kidneys and could lead to kidney failure. Should guzzle large amounts of water while on this diet.

Nope -you are confusing high protein diets, those are tough on the kidneys. But its tough to do a ketogenic diet and avoid over consumption of protein.

[Varda]

It's not harmful for people with normal kidneys. Ketogenic diets are what human ancestors survived on for thousands of years.
However, people who have deteriorated kidney function should avoid it.