Thanks for this, I'm doing a modified fasting regime + keto + crossfit. I started at 515#, 5 weeks ago. I'm 485 now. I have a smaller stomach from surgery in 2012 but I only lost 150 pounds after surgery (650-500). I've been yo-yoing between 450/510'ish.

My daily diet is basically a 8 carb protein shake with 60g protein around noon. Then the equivalent of 2 hamburger patties and 1/4 cup cheese for dinner. My calories rarely exceed 800 though. I feel great -- more energy than ever, and I have 0 hunger, I have to force myself to eat.

I'm hoping this is maintainable and that I can keep the momentum up. My wife has a baby due in January (our 2nd), and I want to be able to do more with the family/kids and be around for them. Luckily I have no co-morbidalities, I just did a full physical -- everything is perfect # wise blood pressure, lipids, vitamins (except D deficiency). But, I'm 38, that could change. My heart could get stressed from the weight in a few years... I've been seeing a therapist for depression, and a doctor for ADHD, and now doing a good fitness regimen.

Last year I was depressed with very dark thoughts, this year I feel great and in more control.