Vitamins Flashcards
What are provitamins?
Inactive forms of vitamins (precursors) that the body converts into active vitamins.
What is the difference between fat-soluble and water-soluble vitamins?
Fat-soluble vitamins (A, D, E, K) are absorbed with fat and stored in the liver, while water-soluble vitamins (B, C) dissolve in water and are excreted in urine.
Which vitamin does NOT require fat for absorption?
Vitamin C
Vitamin C is water-soluble.
Which of these is NOT a source of Vitamin D?
Legumes
Legumes do not provide Vitamin D.
What does Vitamin A protect?
Vision.
Which group is most at risk for Vitamin D deficiency?
Dark-skinned people living in northern areas.
Do fat-soluble vitamins require bile for absorption?
True.
Are water-soluble vitamins stored in large amounts in the body?
False.
Why should fats be added to low-fat meals when eating fat-soluble vitamins?
Fat enhances the absorption of fat-soluble vitamins like A, D, E, and K.
What can destroy vitamins in food, and how can they be preserved?
Air, heat, and light destroy vitamins. Preserve them by eating fresh produce, reducing cooking time, and using cooking methods like steaming.
What is night blindness, and which vitamin deficiency causes it?
Night blindness is a delay in adapting to darkness, caused by a Vitamin A deficiency.
