Questions and Answers
Which statement regarding water-soluble vitamins is FALSE?
Which vitamin is mismatched with its deficiency?
Which of the following is LEAST likely to contribute to cases of rickets in the U.S?
Which of the following are classified as water-soluble vitamins?
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Which individual has a valid reason to take a vitamin/mineral supplement?
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If you eat a food that contains a large dose of thiamin and riboflavin, what will most likely happen to the thiamin and riboflavin?
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The need for vitamin E rises as people consume more of what because it requires antioxidant protection by the vitamin?
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Which characteristic is LEAST likely to apply to a fat-soluble vitamin?
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What are the two vitamins that are abundant in leafy greens and citrus fruits, as well as other fruits and vegetables?
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Which vitamin's main role is to help activate proteins that help blood clot?
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What characteristics of her diet would cause a woman on a low-carb diet for weight loss to have difficulty maintaining an adequate level of B vitamins?
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What type of deficiency is your friend at risk for developing if they eat a lot of highly processed foods but drink fortified milk?
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Which vitamin supplement is known to cause malformations of a fetus?
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Which food item has the highest amount of vitamin C?
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Which symptom is not associated with vitamin B deficiency?
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Study Notes
Water-Soluble Vitamins
- Easily absorbed and excreted through urine; not stored in the body.
- Cooking can cause loss via drainage of cooking water.
- Sensitive to light, heat, and oxygen, leading to potential destruction.
Vitamin Mismatches
- Vitamin D is incorrectly paired with pernicious anemia; it is linked to rickets.
- Correct pairings include:
- Vitamin C - scurvy
- Niacin - pellagra
- Vitamin K - excessive bleeding
- Thiamin - beriberi
Rickets Contributing Factors
- Increased physical activity in sports is least likely to contribute to rickets compared to:
- Preference for soft drinks instead of milk.
- Dark skin pigmentation.
- Use of UV-blocking sunscreen.
- Increased time spent indoors.
Classification of Water-Soluble Vitamins
- Water-soluble vitamins include B vitamins (like B1, B2) and vitamin C.
- Fat-soluble vitamins are A, D, E, and K, not included in the water-soluble group.
Vitamin/Mineral Supplement Justification
- Individuals addicted to drugs or alcohol may have valid reasons for supplementation.
- Others like those who dislike vegetables or feel tired lack strong justification.
Fate of Thiamin and Riboflavin
- Excess thiamin and riboflavin consumed are typically excreted if not utilized on the day absorbed.
Vitamin E Requirements
- Increased consumption of polyunsaturated fats raises the need for vitamin E due to its antioxidant properties.
Characteristics of Fat-Soluble Vitamins
- Fat-soluble vitamins dissolve in lipids and require bile for absorption.
- They are not easily excreted in urine and can accumulate in the body, leading to toxicity.
Nutritional Importance of Fruits and Vegetables
- Folate and vitamin C are abundant in leafy greens and citrus fruits.
- Emphasis on daily consumption of a variety of fruits and vegetables for optimal nutrient intake.
Vitamin K Function
- Key role in activating proteins essential for blood clotting.
Diet and B Vitamin Intake
- Exclusion of grains and cereals in low-carb diets can lead to inadequate levels of thiamin, riboflavin, niacin, and folate.
Risks for Nutritional Deficiencies
- Those consuming highly processed foods may lack vital nutrients such as vitamin E despite drinking fortified milk.
Vitamin A and Fetal Development
- High doses of vitamin A can result in fetal malformations.
Highest Vitamin C Food Source
- 1/2 cup of sweet red pepper contains more vitamin C than:
- 1 cup of yogurt
- 1/2 cup of rice
- 1/2 cup of carrots
- 1 oz of steak
Vitamin B Deficiency Symptoms
- Increased appetite is not typically associated with vitamin B deficiency; other symptoms include irritability, nausea, muscle pain, and forgetfulness.
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Description
Test your knowledge on water-soluble vitamins with this quiz based on Chapter 7. Determine which statements about their absorption, storage, and effects are true or false. Enhance your understanding of the role of these vitamins in nutrition.
