Oddbean

Did they gain it back in muscle mass? Or because they stopped doing keto? If you keep doing keto and don't cheat all the time (that's what most people do, though), you will stay lean and healthy as hell.

You are right, if you keep doing it you will keep the weight off. And your visible measures of health will be great. But I'm not convinced that longterm keto is without risk. I think it raises the risk of colon cancer and atherosclerosis very significantly. I've talked to doctors who have told me they are seeing a huge uptick of young people with colon cancer, far more than ever before, just in the last 5 years. And I notice that is when carnivore diet became popular. And I notice that medical research going back many decades has made that association before many times. So I have a hypothesis and I'm running with it. Of course medical science might be wrong, or misinterpreted or whatever, but I don't want to argue this. We can just agree to disagree. I just wanted to state my position so you understand my personal choice here. I'm only in it for the short term. I will lose weight, I will see what all the fuss is about, and then I will slowly adjust the diet and try to keep the weight off.

I'm not that sure that it will increase actual colon cancer rates. Lets remember that cancer mostly feeds on sugar. I would love to know the survival rate increase relative to the higher detected amount of colon cancer. That data would be very interesting

The entire colon cancer thing is a myth. There are no studies that actually correctly identify "red meat eaters". Anyone who eats a beef burger BUT ALSO the fries, chicken nuggets and coke gets into the red meat eater cohort. Anyone who ears salami - highly processed food - ON A BREAD, with orange juice or granola for breakfast -> red meat eater. There are no proper large scale studies that followed a large group of keto or carnivore eaters. All that "conventional wisdom" that people are parroting stems from 70 years of bogus science. It's all worthless epidemiological studies. Humans are carnivores. Our digestive system is most similar to that of wolves. Our natural food is red meat - it's literally stated in the bible: Eat meat from animals that have hooves and graze, but not pigs. They knew something thousands of years ago. What is far more likely is that red meat is our original food, and by adding carbs and seed oils, we throw a wrench into the system that makes things go haywire. It will take decades for enough studies to come out (impossible to fund these, since big pharma has zero interest in a population of healthy carnivore eaters) to show this.