Well in my case it isn't just fat but bloating altogether. I am very carb and fat sensative I guess you would say. I add on about 7% easy even if I eat clean during a bulk cycle. After PCT when I go to cut, it drops from 18% back to 11-12% within the first 2 weeks. 4 weeks of cutting can render me about 8-9%. As soon as my cutting cycle is over I shoot back up to 12% in just under 2 weeks. I am also hypoglycemic, which has a little bit to do with this. I know this probably doesn't help lol