Strength training plus an intensely physical job, 200g of peanut butter was an extra 1200kcal and went down very easily at the end of the day. Sometimes I'd be so tired I'd end up eating the rest of the jar as well. I must have eaten my girlfriend's weight in peanut butter over the course of a year. I'm so tired all the time nowadays I don't really know how it was possible. Some days would need 7000kal to hit maintenance.