I've witnessed a "muh 300 cal/day!" ham before and I've figured out why they claim this. They only tell you about their "good" days when they eat almost nothing and want you to think that's everyday. But in reality, these lards have the willpower of a junkie so they can only keep it up "most" of the time before binging out every few days, and when you do the calorie math, it's no question why they're gaining weight. 2 days of 300 calories followed by a binge day of 8000 calories comes out to an average of almost 3000 calories a day. You laugh, but I've witnessed hams doing this firsthand and complaining that they've "tried everything and just can't lose weight."