Eli5 So we need calories to survive. If there are 100 calories in a spoon of oil, how come we can’t survive on oil for emergencies?

Question

Eli5 So we need calories to survive. If there are 100 calories in a spoon of oil, how come we can’t survive on oil for emergencies?

In: 3554

Answer 1

In an emergency instead of eating only oil your body could just brake down your fat reserves and get you energy that way. You could not eat for a few days and be fine.

Having carbs, nutrients and protein will help you keep your mood, digestion and immune system working which would all be usefull in an emergency.

Just eating a lot of oil can also upset your stomach, which leads losing fluids and making you feel worse than before.