The term bioavailability means the
a. total amount of a mineral in a food.
b. ratio of free to bound mineral in a food.
c. amount of a mineral that is excreted by the body.
d. amount of a mineral that can be absorbed by the body from a food.
D
Bioavailability is the amount of a mineral that can be absorbed by the body from a food. It is generally lower than the total amount of the mineral in a food. It may be related to the ratio of free to bound mineral in a food, but that is only one of many factors affecting bioavailability. It is not related to the amount excreted by the body.
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