nutrients is found in food. without nutrients our body would shut down, it is possible you can die.
to give the body energy
FOOD
Glucose
Fiber.It is needed to help move food through the gut, but can't be digested into anything.
so that we get the right nutrients needed for our body
Food and Oxygen
Minerals are part of the food that we eat.
The 4 organic substances found in your body are carbohydrates, lipids, proteins and nucleic acids
The important functions of digestive system are Digestion, Absorption and Elimination of ingested food. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. So the significance is extracting the nutrients needed for fueling the body while getting rid of what is not needed by the body.
The kind of food does the body not store vitamin C found fruits and vegetables
Earl Mendell(Vitamin Bible)...tells it all. Amazon, BN, pharamacy usually have this book for $8?
The blood gets it's food energy from the food we eat which is digested into nutrients needed in our body.