I do a modified keto. My surgeon said to do 60-80g of protein everyday, less than 50g of fat, less than 50g of carbs, and little to no sugar. I do all of that except I chose to limit my carbs to 25 or less per day and I typically do 70-90g of fats (healthy, like avocado, not a lot of bacon and sausage and all that). I also severely limit my salt. I told my surgeon, and at first he wasn't too happy about it. But I've lost 103 pounds in almost 7 1/2 months, my cholesterol and bp are perfect, I'm no longer diabetic. So he said as long as I'm doing good and my numbers stay good, he's ok with it. I'm no longer on my bp pill, my 3 diabetic meds, or my Celebrex (really strong anti-inflammatory). I'm now able to work out 5-6 days per week and I have my full mobility back without my cane (I needed a cane at my heaviest weight).