@twinklecake did you ever know that the first thing a baby sloth eats is it's mother's fecal matter? It's a lot like how humans use breast milk; nutritious, filled with the healthy bacteria that's been cultivated by the mother, and the baby sloths refuse to eat anything else. Baby birds also consume their mother's vomit ^-^
There are several foods that can be "nutritious" and "taste good" but not be fit for human consumption. She ignores this law and uses whatever she finds. Super food that tastes great and increases your brain power but causes intestinal cramps due to its inability to be properly digested? GO FOR IT!