Fat
carbohydrates
carbohydrates
it is carbohydrates
For animals, the macronutrients are those food substances (carbohydrates, proteins, fats) that provide energy. [1] 1 gram of carbodydrate provides 4 calories[2] 1 gram of protein provides 4 calories[3] 1 gram of fat provides 9 calories
Protein
i think the sun provides it
carbohydrate
Carbohydrates mainly provide energy.
Fat. More calories =more heat=more energy.
Glucose.
Well, 1g of carbs or proteins provides 4 calories of energy. The only other source of energy are alcohol and fat. Alcohol provides 7 calories of energy per gram and fat provides 9 calories of energy per gram. So if you want over twice the amount, then the only option is fat.
In food, there are three macronutrients that provide energy. They are fat, carbohydrates, and protein. Fat is the nutrient that provides the greatest amount of energy at nine calories per gram. Protein and carbohydrates provide only four calories per gram.