Yes, sugar is a major problem...heck they add it to so much...like canned peas. Food satisfaction is the issue...I’m finding more (healthy organic butter) fat and more salt (himalayan or celtic) satisfy me...and don’t put on the pounds. Also intermittent fasting...or at least going for 12 hours without eating.
Oh...and I should say I dropped about 20 lbs 2 years ago at age 63) doing the above (and Pilates)