Fats, carbohydrates and proteins are needed for a healthy diet because these macromolecules provide energy to our body. Fats are the macromolecules that can be broken down into micromolecule i.e. fatty acids, carbohydrates are broken down into glucose molecule and proteins are broken down into amino acids which can be absorbed by our body for the generation of ATP molecules. Beef, chicken, lamb, livers, meat extracts, mackerel, anchovies, and sardines are the food sources that has high amount of nucleic acid.
