Well biology but not physics (since from physics' perspective, there's plenty of energy in a nuclear fuel pellet), but yes. I think olive oil is the most calori

Well biology but not physics (since from physics' perspective, there's plenty of energy in a nuclear fuel pellet), but yes. I think olive oil is the most calorie-dense thing food ingredient, and you'd need to drink about 8 ounces of it to get 2000 calories.