some ingredients are more easily absorbed by the stomach. Others pass quickly through the body. so even if they have the same calorific value the first would be more beneficial
It is possible that some foods may not be metabolized as efficiently as others even though they contain more kcal/unit.
Energy-dense foods tend to be processed foods with sugar and fat added to improve the taste. The result is more calories per ounce
Unless you drink pure oil or eat pure lard, there is no food which just IS fat. However nearly all foods contain some fat and some foods contain more than others.
Yes, fatty foods have more chemical energy than sugary food because fatty foods have so much more chemical energy, but fatty food isn't good for you.
foods which burn more energy being eaten than they contain. for example celery and cucumber
There are some studies that claim organic foods contain more nutrients, but other studies show they do not.
it gives you more energy than other foods
There is a lot of foods that contain Tryptophan. Any meat and food from animals more than likely has Tryptophan in it. Also lots of plants such as seaweed and spinach have Tryptophan. Soy foods also contain Tryptophan. For a more complete list of foods that contain Tryptophan visit the website in the related links section below.
it gives you more energy than other foods
More energy is in disaccharides. They contain more bonds.
No, freezing foods has no effect on the caloric content of the food.
Fat contains 9 kcal per gram, whereas carbohydrates and protein contain only 4.