Generally, why do meats have more calories than plants?

Question

In school, I remembered learning that since plants directly gets their energy from the sun, they have the most energy and when they get eaten, the animal gets less energy, and so on. If this is the case, why is it that most meats have more calories than fruits and vegetables?

In: Biology

Answer 1

Because fruits and vegetables are extremely low in fat. They are just about all carbs. Meats are a combination of fat and protein. Fat has 9 calories per gram. Carbs and protein have 4 calories per gram. Fruits and veggies also have fiber, which means lower net calories. That’s it really.