People would die on diabetic wards because their families would smuggle in fruit. Of course it is better to eat berries than candy, but it is just less bad, and you can absolutely get diabetes and fatty liver by eating too much fruit. I actually treated a diabetic patient who complained his HbA1C wouldn't go down despite eating 2lbs of apples a day (he eliminated candy, after all).

People on carnivore get better because: a) their insulin levels drop to low enough levels to enable fat loss, b) they get rid of all the harmful plant antinutrients they may be sensitive to, and yes, of course, c) getting rid of seed oils. They are satiated, and have good nutrition for once in their life since meat is the most nutritious food we have.

It is so exhausting talking about nutrition, everybody has an opinion about everything, and there is little strong scientific data backing for anything. Well, except of course that saturated fats don't cause heart disease lol. Whatever works for you - I'm glad and keep it up. Unless it's vegan, then you're bound to have terrible consequences.