Can someone help me out please I need to be able to identify the three primary functions of nutrients and foodsorry I left out "three primary...

As you need the functions of food and the nutrients they
contain in the form of three primary functions, let me try
that.

• The first function of the nutrients in
  food is to provide energy for the body. Our body cannot get its energy from any other
  source except the food we eat. The nutrients involved here are carbohydrates, fats and
  proteins

• The second function would
  be to create all the bodily parts and help in their repair as they are damaged with use
  and over time. This requires nutrients like proteins, fats, and minerals like calcium,
  magnesium, etc.

• The third function
  would be to facilitate the two functions mentioned earlier. This would be the role of
  all the vitamins, minerals required in very small amounts,
  etc.

I hope this answers your query to an
extent.