LOW FAT is a MYTH foisted on us by mainstream medical culture. Fat is ABSOLUTELY what our bodies need to make energy and feed our brains (which have been brainwashed with carbs/sugars)
Not sure what your regime consists of, but there's been a new game in town and it's really catching fire because it WORKS... trick is to get your body chemistry/metabolism back to it's natural state. Check out all the info you can on a LCHF way of eating (Low Carb High Fat) - it makes TOTAL sense the more you learn about it!
https://youtu.be/kaquSijXJkQ