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vitamin

A substance the body needs in small amounts for normal growth and function, mostly from food.

VY-tuh-min noun

What it means

One of 13 nutrients the body needs but cannot make enough of. Fat-soluble vitamins (A, D, E and K) are stored in the body, so large doses can build up to toxic levels; water-soluble vitamins (C and the B group) are not stored much, and extra leaves in the urine. Some are given as medicines, such as vitamin K to reverse warfarin, thiamine (vitamin B1) for people with alcohol use disorder, and vitamin B12 injections for one kind of anemiauh-NEE-mee-uhA lower than normal number of red blood cells or amount of hemoglobin in the blood.a- without, lacking-emia blood conditionFull entry .

For the nurse

Ask about vitamins and supplements when taking a medication history, because some interact with drugs: vitamin K foods and supplements change how warfarin works. Teach that more is not always better, especially for vitamins A and D.

At a glance

Spanishvitamina
Also writtenvitamins

Related terms

anemia

A lower than normal number of red blood cells or amount of hemoglobin in the blood.

anticoagulant

A drug that slows the blood's ability to form clots.

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