Is eating well a luxury? A new book looks at how companies keep us wanting more junk food. Now some experts say that it cannot be called food at all.
Food industry is killing us warns top doctor

Glossary
Protein - Large biomolecules made of up amino acids, which in turn are made up of DNA.
Calories - The amount of energy released when your body digests and absorbs food. The more calories a food has, the more energy it gives your body.
Miserable - Sad.
Cost of living - The money that someone needs to afford basic food, housing and clothes.
Luxury - Something that makes your life very comfortable or pleasant.