NutritionLesson 1 of 3 in the course A Holistic View of Micronutrients

Vitamin Functions, Intake, Safety, and Food Planning

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

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Summary

Vitamins are small-quantity nutrients that support many essential body processes. This lesson introduces how vitamins are classified and examines the roles and safety considerations of vitamins A, D, E, and K.

Vitamins are nutrients the body needs in small amounts to function and stay healthy. They come from foods and, when needed, supplements. Their general roles include supporting immunity, healthy bones and teeth, skin, blood, metabolism, and brain and nervous system function. Vitamins have distinct functions; one vitamin cannot necessarily replace another.

All flashcards

What makes a vitamin fat-soluble?
It is absorbed with dietary fat and can be stored in the liver and fatty tissues.
How does vitamin A help maintain protective barriers?
It supports mucus-producing cells in body passages.
How does vitamin E protect cells?
It acts as an antioxidant against reactive oxygen species and free radicals.
Why are newborns given vitamin K?
It supports blood clotting and reduces the risk of serious bleeding.
What is one important role of folate?
It supports DNA and RNA synthesis and normal cell division.

Quiz questions

  1. What does enrichment do to some processed grain foods?Answer: Adds selected nutrients that were removed during processing.
  2. What is one benefit of folic acid fortification of grain foods?Answer: It helps reduce the risk of neural tube defects.
  3. What can high folic acid intake from fortified foods mask?Answer: Signs of anemia caused by vitamin B12 deficiency.
  4. How much does smoking increase the stated daily vitamin C requirement?Answer: By 35 mg per day.
  5. According to FDA guidance, what %DV is considered high for a nutrient per serving?Answer: 20% DV or more.

Based on Nutrition for Nurses by Emerald Charity Bilbrew, Jody Vogelzang, Kelli Whittington (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.

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