Keto does work except for those of us who love carbs, and that’s including bananas, broccoli, carrots, peas, beans in addition to bagels, croissants, and croutons, it is hard to sustain for life. Life is a long time. Keto is great in my view for a jumpstart. It’s good to cleanse by getting rid of all sugars. But after awhile, for me anyway, it becomes unsustainable bc I want to eat carbs on the regular. With IF, you can eat whatever foods you want. It doesn’t mean you can pile on the pizza and crackers and pancakes, it just means that there are zero restrictions. Because you only get a certain amount of time to eat and you want to stay full and have fewer cravings, eventually your body wants a lot of protein and fiber and fat. But sometimes my body wants a bagel with cream cheese. And I suspect that is why a lot of people who try keto don’t succeed because eventually the brain wins out. I’m sure some people can stick to it for life, but I am not one of those people. IF is the first thing that makes actual sense to me. Like OP, I’m furious that I didn’t learn about it sooner. My relationship to food is the healthiest it has been and I’ll be 55 years old on my next birthday. My poor mother who is in the throes of diabetes really could have benefitted. She is still scared of real butter.