it's just that fruit is the main thing that will switch your body out of fat burning mode . As que said though once you're fat adapted well n good - so long as you stay under limits for the day . An occassional fruit under half your daily carb limits wont hurt .
berries are 99% safe on keto anyways once youre fat adapted .. grinder I used to make casein+whole egg protein+golden flaxmeal+...