| Chemical constituent | % of Body weight |
| Water | 60% |
| Proteins | 17% |
| Fats | 15% |
| Minerals | 5% |
| Nucleic Acids | 2% |
| Carbohydrates | Only 1% |
Infants and children have more water in their body as compared to adults. The second major nutrient that makes up our body is protein. There are tens of thousands of different types of proteins in our body; most of them are enzymes. The third major nutrient after protein is lipids( fats). All 60 trillion cells of our body are made from lipids. Women have more lipids in their body as compared to men counterparts. Very little carbohydrates, as carbohydrates turn to lipids.