COMPREHENSIVE VITAMINS AND NUTRIENTS: ROLES,
SOURCES, AND DEFICIENCIES EXAMS WITH 100% CORRECT
DETAILED ANSWERS LATEST UPDATED 2025/2026 BEST RATED
A+ FOR SUCCESS
Vitamins correct answers
Essential nutrient that's tasteless, organic, and needed in small
amounts.
Precursor correct answers
Can be a vitamin if needed; all provitamins are precursors.
Free radical correct answers
Unstable oxygen-containing molecules that can damage cells of
the body and possibly contribute to increased risk of chronic
diseases.
Provitamins correct answers
Plant-based pigments that can be converted to vitamins by the
body, such as beta carotene.
Antioxidant correct answers
Counteracts oxidation by neutralizing free radicals; includes
Vitamins A, C, E, and beta carotene.
Vitamin A correct answers
900 ug RAE male, 700 ug RAE females; roles include vision,
reproduction, and maintenance of body linings.
, COMPREHENSIVE VITAMINS AND NUTRIENTS: ROLES,
SOURCES, AND DEFICIENCIES EXAMS WITH 100% CORRECT
DETAILED ANSWERS LATEST UPDATED 2025/2026 BEST RATED
A+ FOR SUCCESS
Sources of Vitamin A correct answers
Liver, fish oils, milk, eggs, carrots, spinach, sweet potatoes,
pumpkin.
Toxicity of Vitamin A correct answers
Nausea; beta carotene can cause yellow skin; carotenoids are
not toxic.
Deficiency of Vitamin A correct answers
Night blindness, xerophthalmia, stunted bone growth.
Vitamin D correct answers
15 to 20 ug per day; acts as a hormone, regulates calcium and
phosphorus, essential for bone health.
Sources of Vitamin D correct answers
Cholesterol-containing compound in skin, fortified milk and
yogurt, fortified cereals, fatty fish (sardines, salmon).
Toxicity of Vitamin D correct answers
Hypervitaminosis D leads to hypercalcemia, high blood calcium,
and calcification.
Deficiency of Vitamin D correct answers
SOURCES, AND DEFICIENCIES EXAMS WITH 100% CORRECT
DETAILED ANSWERS LATEST UPDATED 2025/2026 BEST RATED
A+ FOR SUCCESS
Vitamins correct answers
Essential nutrient that's tasteless, organic, and needed in small
amounts.
Precursor correct answers
Can be a vitamin if needed; all provitamins are precursors.
Free radical correct answers
Unstable oxygen-containing molecules that can damage cells of
the body and possibly contribute to increased risk of chronic
diseases.
Provitamins correct answers
Plant-based pigments that can be converted to vitamins by the
body, such as beta carotene.
Antioxidant correct answers
Counteracts oxidation by neutralizing free radicals; includes
Vitamins A, C, E, and beta carotene.
Vitamin A correct answers
900 ug RAE male, 700 ug RAE females; roles include vision,
reproduction, and maintenance of body linings.
, COMPREHENSIVE VITAMINS AND NUTRIENTS: ROLES,
SOURCES, AND DEFICIENCIES EXAMS WITH 100% CORRECT
DETAILED ANSWERS LATEST UPDATED 2025/2026 BEST RATED
A+ FOR SUCCESS
Sources of Vitamin A correct answers
Liver, fish oils, milk, eggs, carrots, spinach, sweet potatoes,
pumpkin.
Toxicity of Vitamin A correct answers
Nausea; beta carotene can cause yellow skin; carotenoids are
not toxic.
Deficiency of Vitamin A correct answers
Night blindness, xerophthalmia, stunted bone growth.
Vitamin D correct answers
15 to 20 ug per day; acts as a hormone, regulates calcium and
phosphorus, essential for bone health.
Sources of Vitamin D correct answers
Cholesterol-containing compound in skin, fortified milk and
yogurt, fortified cereals, fatty fish (sardines, salmon).
Toxicity of Vitamin D correct answers
Hypervitaminosis D leads to hypercalcemia, high blood calcium,
and calcification.
Deficiency of Vitamin D correct answers
