I'm not a "diet" kind of guy, but I did modify my eating habits. I've cut out carbs and sugars and am down over 50 lbs so far. I don't specifically exercise, but I keep very active when I am not working behind this darn computer! For me it is a "permanent" change in my lifestyle. My cholesterol was borderline last it was checked when I was pushing over 270 lbs and with a family history of it. My Dr. wanted to put me on statins and a baby aspirin a day.
With all that said, I am still here, and turning out and enjoying some fantastic BBQ! ...in moderation. I had to take a bit of a hiatus at first from SMF, but I've found my zone. I haven't been back to the doc yet to have it checked again, but most importantly I feel a whole lot better!
The #1 thing that was key for me was READING LABELS and not just going by what anyone said was "keto" or "low carb" or whatever. Oh, I still occasionally have a pile of biscuits and gravy or French toast with ghee butter and sf maple syrup (found some real good substitutes I can live with!). But I probably now eat at least 3 times the vegetables I used to and love it! I'm in it for the long haul. You can do it!