[Mase]

Ketone bodies are produced as your body burns fat. This is what can trigger metabolic acidosis, which is a known cause of chronic kidney disease. High protein diets can also be hard on the kidneys, which is just another one of many reasons why fad diets should be avoided. Of course, there are foods that can be high in both protein and fat.

The types of food you eat doesn't matter all that much because the best method for losing weight is to burn more calories than you consume. Same as it ever was. Consume more energy than you burn and you'll gain weight. The First Law of Thermodynamics has not been repealed.

[BobL]

“High protein diets can also be hard on the kidneys”

Agree, very risky to replace carbs with protein. But since we’re not talking high protein here, not really relevant to this thread.

But still good advice - replace carbs with low fat meats and fish (only), rather than high fat foods, you’re not doing yourself any favors, to say the least. So it is important to keep track of what you’re eating!

[dfwgator]

The types of food you eat doesn't matter all that much because the best method for losing weight is to burn more calories than you consume.

Of course. And that still applies to Keto. Keto does not give you Carte Blanche to eat as much as you want. If you eat 5000 calories of fat, guess what? You're going to get fat. The key is, Keto makes it easier to eat a reasonable number of calories.

[Mr Rogers]

“the best method for losing weight is to burn more calories than you consume”

Factually incorrect. Humans are not cars. Hormones affect our fuel efficiency, and what we eat when affects our hormones. This is particularly true once someone gets overweight, since their hormones are often out of whack. Not because of genetics, but because of eating badly while thinking they are doing it right - thanks to the American Heart Association and the USDA.

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“It’s a concept that’s been around for at least 50 years and you hear it all the time: higher protein diets cause kidney disease,” says Stuart Phillips, a professor of kinesiology at McMaster who oversaw the study.

“The fact is, however, that there’s just no evidence to support this hypothesis in fact, the evidence shows the contrary is true: higher protein increases, not decreases, kidney function,” he says.

https://medicalxpress.com/news/2018-11-high-protein-diet-affect-kidney-function.html

Also, what many argue is not in favor of “high protein”, but high fat. A serving of 80% lean hamburger, for example, has 23 grams of fat to 19 of protein. Assuming, of course, you don’t follow the USDA and try to drain every last bit of fat out!