_______ are organic compounds that you need in small amounts for growth,
reproduction, and overall good health. correct answers Vitamins
___________ provide energy (calories) for your body, but they are essential nutrients
for your well-being. correct answers Vitamins
There are ____ vitamins; most can be obtained from food correct answers 13
Vitamins are either _________ or _____________. correct answers fat-soluble or
water-soluble.
Vitamins __, __, __, and __ are fat-soluble. correct answers A, D, E, and K
___ vitamins and vitamin __ are water-soluble and are absorbed directly into the
bloodstream. correct answers B
c
_____________ are a group of compounds that includes vitamins E and C, beta-
carotene, the mineral selenium, and certain phytochemicals. correct answers
Antioxidants
________ ___________ are normal by-products of your body's metabolic reactions, but
they can also result from exposure to chemicals in the environment or from ultraviolet
rays correct answers Free radicals
_______________ are naturally occurring substances in fruits, vegetables, and whole
grains that can protect against certain diseases. correct answers Phytochemicals
________________ is the degree to which a nutrient is absorbed from foods and used
in the body. correct answers Bioavailability
Overconsumption of some vitamins can be _________. correct answers toxic
Vitamin toxicity, or _______________, is very rare but results from ingesting more of
the vitamin than the body needs. correct answers hypervitaminosis
_____________ are substances found in foods that can be converted into an active
form once they are absorbed. correct answers Provitamins
____________ vitamins are stored in your body and used as needed. correct answers
Fat-soluble
, Your ________ mainly stores vitamin A and, to a lesser extent, vitamins K and E.
correct answers liver
Fat and muscle tissues mainly store vitamin _____. correct answers D
Vitamin A is a family of substances called ___________. correct answers retinoids
_________, ____________, and ____________ acid are the retinoids; they are all
called preformed vitamin A. correct answers Retinol
Retinal
Retinoic
Preformed vitamin A is found only in Preformed vitamin A is found only in ___________
foods. correct answers animal
Some ______ foods contain provitamin A carotenoids. correct answers plant
Vitamin A is essential for __________. correct answers vision
___________ is part of two essential, light-sensitive proteins in your retina needed for
vision. correct answers Vitamin A
Vitamin A is needed for cell ___________, the process that determines what a cell
becomes in the body. correct answers differentiation
______________ can aid in the treatment of acne by manipulating the gene expression
of acne-producing cells to alter their development in the skin. correct answers Vitamin
A
The Institute of Medicine suggests getting ___ to ____ milligrams of beta-carotene daily
from foods. correct answers 3 to 6
The most popular sources of preformed vitamin ____ in the U.S. diet are organ meats
(liver), milk, and eggs. correct answers A
The UL for adults is _______ micrograms of preformed vitamin A daily. correct answers
3,000
__________________ A is a serious condition in which the liver accumulates toxic
levels of vitamin A. correct answers Hypervitaminosis
Excessive vitamin A may lead to ___________. correct answers osteoporosis