I read that several years ago, some farmers figured they could fatten up their cattle by feeding them more fat, so they fed them a bunch of coconut oil. But instead of getting fat, they lost weight.
best way to fatten livestock is to feed them carbs (ie corn!) grass fed cows grow much much leaner than those on corn
So why does corn fatten them better? Is it the macronutrient makeup of digested grass vs digested corn, or is it simply that corn is more calorie dense than grass?