Nutritional value of milk 

Milk is considered a nutritious drink. There is 3.4 grams of protein in 100g of milk. Protein is necessary for repair and growth of cells in the body. The GDA (guideline daily amount) for protein is 45 so milk is a good source of protein. 

In milk there is 1g total fat. This is relatively high because the GDA is 70g and fat is in basically everything. Fat is needed for insulation and energy in the body. It also helps to protect organs. 

It has 5g carbohydrates. None of this is fibre. It is all sugars. The GDA for sugars is 90g. We need sugars for slow release energy.

Milk also has vitamin A in it. This is good for our eyesight and also has a role in healing wounds and bone formulation. It is a fat-soluble vitamin. Milk is a great source of calcium. We need calcium because this mineral helps keep bones strong and healthy. It also helps our blood to clot and helps nerves send messages. 

Milk also has vitamins D, B-12, B-6, and vitamin C. It also has important minerals like iron and magnesium.