Amino acids and proteins consist mainly of carbon, hydrogen, oxygen and nitrogen.
Digestion breaks down natural polymersto smaller, soluble compounds (for example digestion breaks down starch to glucose and proteins to amino acids).
These small molecules can be absorbed and transported in the blood.
Cells grow by building up amino acids from the blood into new proteins.
Excess amino acids are broken down in the liver to the urea, which is excreted by the kidneys in urine.
High levels of sugar, common in some processed foods, are quickly absorbed into the blood stream, causing a rapid rise in the blood sugar level.
There are two types of diabetes (type 1 and type 2).
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