Nutrition And Wellness: Vitamins Test

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Quizzes Created: 18 | Total Attempts: 6,051
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Nutrition And Wellness: Vitamins Test - Quiz

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Questions and Answers
  • 1. 

    Vitamins are considered to be nonessential nutrients.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Vitamins are essential nutrients required by the body in small amounts for various physiological functions. They are necessary for maintaining good health and preventing deficiencies and diseases. Without an adequate intake of vitamins, the body can suffer from various health issues. Therefore, vitamins are considered to be essential nutrients rather than nonessential.

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  • 2. 

    Provitamins are compunds the body can convert into active forms of vitamins

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Provitamins are indeed compounds that can be converted by the body into active forms of vitamins. This means that although provitamins themselves may not have the same biological activity as vitamins, they can be metabolized and transformed into the active forms that the body needs for various physiological functions. This conversion process allows the body to efficiently utilize provitamins and ensure an adequate supply of vitamins for optimal health and functioning. Therefore, the statement "Provitamins are compounds the body can convert into active forms of vitamins" is true.

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  • 3. 

    Vitamin toxicity occurs when daily vitamin needs are not met over an extended period.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because vitamin toxicity actually occurs when the daily intake of vitamins exceeds the recommended levels over a prolonged period. It is important to meet the daily vitamin needs, but exceeding them can lead to harmful effects on the body.

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  • 4. 

    With exposure to sunlight, the body can make vitamin D.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Exposure to sunlight triggers a chemical reaction in the skin that allows the body to produce vitamin D. Sunlight contains ultraviolet B (UVB) rays, which interact with a cholesterol compound in the skin, converting it into a precursor form of vitamin D. This precursor is then transported to the liver and kidneys, where it is further converted into its active form, vitamin D. Therefore, it is true that the body can make vitamin D with exposure to sunlight.

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  • 5. 

    Milk and milk products are good sources of riboflavin.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Milk and milk products contain riboflavin, also known as vitamin B2, making them good sources of this nutrient. Riboflavin plays a crucial role in energy production, growth, and development. It is involved in various metabolic processes in the body and is necessary for maintaining healthy skin, eyes, and nervous system. Therefore, consuming milk and milk products can contribute to meeting the body's riboflavin requirements.

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  • 6. 

    Because pathogenic acid and biotin are found in only a limited number of food sources, deficiencies are fairly common.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The explanation for the answer "False" is that pathogenic acid and biotin are actually not found in only a limited number of food sources. In fact, they can be found in a wide variety of foods. Therefore, deficiencies in these nutrients are not fairly common.

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  • 7. 

    Vitamin B6 helps the body make essential amino acids.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Vitamin B6 does not directly help the body make essential amino acids. However, it does play a crucial role in the metabolism of amino acids, which are the building blocks of proteins. Vitamin B6 is involved in the conversion of one amino acid, called homocysteine, into another amino acid called cysteine. It also helps in the synthesis of neurotransmitters and the production of red blood cells. Therefore, while it is indirectly related to the production of amino acids, it does not directly help in their synthesis.

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  • 8. 

    Cigarette smoke hinders the body's use of vitamin C.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Cigarette smoke contains harmful chemicals that can interfere with the body's absorption and utilization of vitamin C. These chemicals can damage the cells and tissues in the body, reducing their ability to absorb and utilize the vitamin effectively. Therefore, it is true that cigarette smoke hinders the body's use of vitamin C.

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  • 9. 

    Research provides evidence that extra vitamin C in the diet will prevent people from getting the common cold.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Research does not provide evidence that extra vitamin C in the diet will prevent people from getting the common cold. While vitamin C is known to support the immune system, studies have shown mixed results regarding its effectiveness in preventing the common cold. Some research suggests that regular vitamin C supplementation may slightly reduce the duration and severity of cold symptoms, but it does not prevent the onset of the cold itself. Therefore, the statement is false.

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  • 10. 

    Natural vitamins are more effective in the body than synthetic vitamins.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement that natural vitamins are more effective in the body than synthetic vitamins is false. Both natural and synthetic vitamins can be equally effective in the body. The effectiveness of a vitamin depends on its chemical structure and how well it is absorbed and utilized by the body, rather than whether it is natural or synthetic. In some cases, synthetic vitamins may even be more effective as they are specifically formulated to provide the required dosage and concentration of nutrients.

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  • 11. 

    Canned green beans are likely to have higher vitamin content than fresh green beans that are not stored properly.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Canned green beans are likely to have higher vitamin content than fresh green beans that are not stored properly because the canning process helps to preserve the nutrients in the beans. Improper storage of fresh green beans can lead to nutrient loss over time, whereas canned green beans are sealed and preserved at the peak of their freshness, retaining their vitamin content.

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  • 12. 

    Cutting foods into smaller pieces increases their exposure to vitamin losses.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Cutting foods into smaller pieces increases their exposure to vitamin losses because when food is cut into smaller pieces, more surface area is exposed to air and light, which can cause the vitamins in the food to break down and degrade. This is particularly true for vitamins that are sensitive to heat, light, and oxygen, such as vitamin C. Therefore, cutting foods into smaller pieces can lead to greater vitamin losses compared to consuming them whole.

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  • 13. 

    What will eventually happen if a vitamin is missing from the diet?

    • A.

      A craving for rich food sources of the vitamin will develop.

    • B.

      Deficiency symptoms will appear.

    • C.

      The body will adapt to getting alog without the vitamin.

    • D.

      The body will produce the missing vitamin.

    Correct Answer
    B. Deficiency symptoms will appear.
    Explanation
    If a vitamin is missing from the diet, deficiency symptoms will appear. Vitamins are essential nutrients that the body needs in order to function properly. Each vitamin plays a specific role in various bodily processes, and a deficiency in any particular vitamin can lead to specific symptoms. For example, a deficiency in vitamin C can lead to scurvy, while a deficiency in vitamin D can lead to weak bones. Therefore, if a vitamin is missing from the diet, the body will not receive the necessary nutrients to carry out its functions, resulting in deficiency symptoms.

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  • 14. 

    A vitamin A deficiency condition in which the cells in the eyes adjust slowly to dim light, causing night vision to become poor.

    • A.

      Beriberi

    • B.

      Night blindness

    • C.

      Pellagra

    • D.

      Rickets

    Correct Answer
    B. Night blindness
    Explanation
    Night blindness is a condition caused by a deficiency of vitamin A, which affects the cells in the eyes and their ability to adjust to dim light. This results in poor night vision, making it difficult to see in low-light conditions.

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  • 15. 

    A deficiency disease in children caused by a lack of vitmain D and characterized by soft, misshapen bones.

    • A.

      Rickets

    • B.

      Osteomalacia

    • C.

      Scurvy

    • D.

      Erythrocyte hemolysis

    Correct Answer
    A. Rickets
    Explanation
    Rickets is a deficiency disease in children that occurs due to a lack of vitamin D. This condition is characterized by soft and misshapen bones. Vitamin D is essential for the absorption of calcium and phosphorus, which are necessary for bone development and growth. Without enough vitamin D, the body is unable to properly mineralize the bones, leading to weakened and deformed bones. Osteomalacia is a similar condition that occurs in adults, while scurvy is caused by a deficiency of vitamin C and erythrocyte hemolysis refers to the destruction of red blood cells.

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  • 16. 

    A vitamin D deficiency disease in adults that causes the bones to become misshapen.

    • A.

      Perricious anemia

    • B.

      Pellagra

    • C.

      Beriberi

    • D.

      Osteomalacia

    Correct Answer
    D. Osteomalacia
    Explanation
    Osteomalacia is a vitamin D deficiency disease that affects adults and causes the bones to become misshapen. Vitamin D plays a crucial role in the absorption of calcium and phosphorus, which are essential for maintaining strong and healthy bones. When there is a deficiency of vitamin D, the body is unable to properly mineralize the bones, leading to softening and deformities. Symptoms of osteomalacia include bone pain, muscle weakness, and fractures. Treatment involves increasing vitamin D intake through diet, supplements, or exposure to sunlight.

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  • 17. 

    A vitamin E deficiency condtion that is sometimes seen in premature babies and is characterized by broken red blood cells, resulting in weakeness and listlessness.

    • A.

      Neural tube damage

    • B.

      Rickets

    • C.

      Erythrocyte hemolysis

    • D.

      Scurvy

    Correct Answer
    C. Erythrocyte hemolysis
    Explanation
    Erythrocyte hemolysis refers to the breaking down of red blood cells. In premature babies, a vitamin E deficiency can lead to this condition. The weakened red blood cells result in symptoms such as weakness and listlessness. Therefore, erythrocyte hemolysis is the correct answer as it accurately describes the condition seen in premature babies with a vitamin E deficiency.

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  • 18. 

    The thiamin deficiency dieases, which is characterized by weakness, loss of appetite, irritability, poor arm and leg corrdination, and a tingling throughout the body.

    • A.

      Pellagra

    • B.

      Night blindness

    • C.

      Beriberi

    • D.

      Osteomalcia

    Correct Answer
    C. Beriberi
    Explanation
    Beriberi is a thiamin deficiency disease that is characterized by various symptoms such as weakness, loss of appetite, irritability, poor arm and leg coordination, and tingling throughout the body. This condition occurs when there is a lack of thiamin (vitamin B1) in the diet, leading to problems in the nervous system and cardiovascular system. The symptoms mentioned in the question align with the symptoms commonly associated with beriberi, making it the correct answer.

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  • 19. 

    The  niacin defieciency disease, which is characterized by diarrhea and dermititis and can lead to dementia and death.

    • A.

      Pellagra

    • B.

      Night blindness

    • C.

      Erythrocyte hemolysis

    • D.

      Perricious anemia

    Correct Answer
    A. Pellagra
    Explanation
    Pellagra is a niacin deficiency disease that is characterized by symptoms such as diarrhea and dermatitis. If left untreated, it can progress to dementia and even death. This condition is caused by a lack of niacin in the diet, which is an essential nutrient for the body. Therefore, pellagra is the correct answer for the given symptoms.

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  • 20. 

    A deficiency disease caused by an inability to absorb vitamin B12, which is characterized by fatigue;weakness; a red, painful tongue; and a a tingling or burning in the skin

    • A.

      Beriberi

    • B.

      Perricious anemia

    • C.

      Neural tube damage

    • D.

      Osteomalacia

    Correct Answer
    B. Perricious anemia
    Explanation
    Perricious anemia is a deficiency disease caused by the inability to absorb vitamin B12. This condition is characterized by symptoms such as fatigue, weakness, a red and painful tongue, and tingling or burning sensations in the skin. The term "perricious" refers to the fact that the body is unable to properly utilize or absorb vitamin B12, leading to a deficiency. This condition can be treated with vitamin B12 supplements.

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  • 21. 

    The vitamin C deficiency disease, characterized by tiredness, swollen and bleeding gums, slow healing of wounds, and tiny bruises on the skin.

    • A.

      Beriberi

    • B.

      Rickets

    • C.

      Pellagra

    • D.

      Scurvy

    Correct Answer
    D. Scurvy
    Explanation
    Scurvy is a vitamin C deficiency disease that is characterized by various symptoms such as tiredness, swollen and bleeding gums, slow healing of wounds, and the presence of tiny bruises on the skin. This condition occurs when the body does not receive enough vitamin C, which is essential for collagen synthesis and maintaining the health of blood vessels. Therefore, scurvy is the correct answer in this case.

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  • 22. 

    What is indicated by a milk carton labeled fortified with vitamin A and D?

    • A.

      The daily requirements for vitamin A and D will be met by drinking one serving.

    • B.

      The food has passed all safety tests.

    • C.

      The food is a perfect food.

    • D.

      Two nutrients have been added during processing.

    Correct Answer
    D. Two nutrients have been added during processing.
    Explanation
    A milk carton labeled fortified with vitamin A and D indicates that these two nutrients have been added to the milk during processing. Fortification is the process of adding extra nutrients to a food product to increase its nutritional value. In this case, vitamin A and D have been added to the milk to enhance its nutritional content. This labeling is an indication that the milk provides these additional nutrients beyond what is naturally present in regular milk.

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  • 23. 

    Which of the following factors can interfere with vitamin absorption?

    • A.

      An active lifestyle

    • B.

      Diarrhea

    • C.

      High blood pressure

    • D.

      All of the above

    Correct Answer
    B. Diarrhea
    Explanation
    Diarrhea can interfere with vitamin absorption because it causes increased bowel movements and reduces the amount of time that nutrients, including vitamins, are in contact with the intestinal lining. This can lead to inadequate absorption of vitamins from the food consumed. An active lifestyle and high blood pressure, on the other hand, do not directly interfere with vitamin absorption.

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  • 24. 

    Which of the following is not a water-soluble vitamin?

    • A.

      Riboflavin

    • B.

      Vitamin A

    • C.

      Vitamin B6

    • D.

      Vitamin C

    Correct Answer
    B. Vitamin A
    Explanation
    Vitamin A is not a water-soluble vitamin. Water-soluble vitamins are those that dissolve in water and are easily excreted from the body. Vitamin A, on the other hand, is a fat-soluble vitamin, meaning it dissolves in fat and is stored in the body's fatty tissues. Fat-soluble vitamins are not easily excreted and can accumulate in the body, leading to potential toxicity if consumed in excessive amounts. Therefore, Vitamin A does not fit the criteria of a water-soluble vitamin.

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  • 25. 

    Which of the following vitamins are antioxidants?

    • A.

      Niacin and folate

    • B.

      Thiamin and riboflavin

    • C.

      Vitamins B6 and B12

    • D.

      Vitamins C and E

    Correct Answer
    D. Vitamins C and E
    Explanation
    Vitamins C and E are antioxidants because they have the ability to neutralize harmful free radicals in the body. Free radicals are unstable molecules that can cause damage to cells and contribute to various diseases. Both vitamins C and E help protect cells from oxidative stress and promote overall health. Niacin, folate, thiamin, riboflavin, vitamins B6, and B12 do not possess antioxidant properties.

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  • 26. 

    Which of the following best describes a free radical?

    • A.

      A cell that lines the passages of the lungs, intestines, and reproductive tract.

    • B.

      A compound in plant foods that is active in the body.

    • C.

      A highly reactive, unstable single oxygen molecule that can generate a harmful chain reaction.

    • D.

      A substance that reacts with unstable single oxygen molecules to protect other substances.

    Correct Answer
    C. A highly reactive, unstable single oxygen molecule that can generate a harmful chain reaction.
    Explanation
    A free radical is a highly reactive, unstable single oxygen molecule that can generate a harmful chain reaction. Free radicals are formed in the body as byproducts of normal cellular processes and can cause damage to cells, DNA, and proteins. They are involved in various diseases and aging processes. Antioxidants are substances that react with free radicals to protect other substances from their harmful effects.

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  • 27. 

    What is the main function of vitamin K?

    • A.

      Assists in the formation of collagen.

    • B.

      Helps form healthy epithelial tissue.

    • C.

      Promotes blood coagulation.

    • D.

      Regulates levels of calcium in the bloodstream.

    Correct Answer
    C. Promotes blood coagulation.
    Explanation
    Vitamin K is essential for blood clotting, also known as coagulation. It plays a crucial role in the production of certain proteins that are necessary for the clotting process. Without enough vitamin K, blood would not be able to clot properly, leading to excessive bleeding and difficulty in healing wounds. Therefore, the main function of vitamin K is to promote blood coagulation.

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  • 28. 

    The B-vitamin coenzyme ________.

    • A.

      Combine with inactive enzymes to form active enzyme systems

    • B.

      Help release energy from carboydrates, proteins, and minerals

    • C.

      Include thiamin, riboflavin, and ascorbic acid

    • D.

      All the above.

    Correct Answer
    A. Combine with inactive enzymes to form active enzyme systems
    Explanation
    The B-vitamin coenzyme combines with inactive enzymes to form active enzyme systems. This means that the coenzyme helps activate enzymes that are initially inactive, allowing them to carry out their specific functions in the body.

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  • 29. 

    Common symptoms of B vitamin deficiencies include ______________.

    • A.

      Depression and exhaustion

    • B.

      Loss of weight and appetite

    • C.

      Nausea and irritability

    • D.

      All of the answers are correct

    Correct Answer
    D. All of the answers are correct
    Explanation
    The given answer states that all of the symptoms listed in the options (depression and exhaustion, loss of weight and appetite, nausea and irritability) are common symptoms of B vitamin deficiencies. This means that individuals who are deficient in B vitamins may experience any combination of these symptoms.

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  • 30. 

    Why is flour enriched?

    • A.

      To add back nutrients that were lost in processing

    • B.

      To give it better flavor

    • C.

      To help it stay fresh longer

    • D.

      To restore its natural color

    Correct Answer
    A. To add back nutrients that were lost in processing
    Explanation
    Flour is enriched to add back nutrients that were lost during the processing. Processing of flour often involves removing the bran and germ, which are rich in vitamins and minerals. Enrichment is done by adding back some of these nutrients, such as iron and B vitamins, to ensure that the flour still provides some nutritional value. This is especially important as flour is a staple ingredient in many diets and enriching it helps to prevent nutrient deficiencies.

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  • 31. 

    Women of childbearing age should strive to fully meet folate requirements ______________.

    • A.

      Before becoming pregnant

    • B.

      During the sixth month of pregnancy

    • C.

      Just prior to giving birth

    • D.

      During lactation

    Correct Answer
    A. Before becoming pregnant
    Explanation
    Folate is a crucial nutrient for women of childbearing age as it helps prevent neural tube defects in babies. Therefore, it is important for women to fully meet their folate requirements before becoming pregnant. This ensures that their bodies have enough folate to support the healthy development of the baby's neural tube from the very beginning of pregnancy. Meeting folate requirements during the sixth month of pregnancy, just prior to giving birth, or during lactation may not provide the same level of protection against neural tube defects.

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  • 32. 

    Which vitamin poses the greatest deficiency risk for people who eat no foods from animal sources?

    • A.

      Vitamin A

    • B.

      Vitamin B-6

    • C.

      Vitamin B-12

    • D.

      Vitamin C

    Correct Answer
    C. Vitamin B-12
    Explanation
    Vitamin B-12 poses the greatest deficiency risk for people who eat no foods from animal sources. This is because vitamin B-12 is primarily found in animal-based foods such as meat, fish, eggs, and dairy products. It is essential for the formation of red blood cells, DNA synthesis, and proper nerve function. Since plant-based foods do not contain sufficient amounts of vitamin B-12, individuals who follow a strict vegan or vegetarian diet may be at a higher risk of deficiency and may need to supplement their diet with fortified foods or B-12 supplements.

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  • 33. 

    Which of the following is a good source of Vitamin C?

    • A.

      Enriched breads and cereals

    • B.

      Fortified margarine

    • C.

      Strawberries

    • D.

      Milk

    Correct Answer
    C. Strawberries
    Explanation
    Strawberries are a good source of Vitamin C because they are rich in this nutrient. Vitamin C is an essential vitamin that is important for the growth and repair of tissues in the body. It is also a powerful antioxidant that helps protect cells from damage caused by free radicals. Strawberries are known for their high Vitamin C content, which makes them a healthy choice to incorporate into one's diet to meet the recommended daily intake of this vitamin.

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  • 34. 

    How do phytochemicals protect the body?

    • A.

      They act as antioxidants

    • B.

      They bind harmful substances

    • C.

      They help the body make enzymes

    • D.

      All are true

    Correct Answer
    D. All are true
    Explanation
    Phytochemicals protect the body in multiple ways. Firstly, they act as antioxidants, which means they help neutralize harmful free radicals and reduce oxidative stress. Secondly, phytochemicals have the ability to bind to harmful substances, such as toxins and carcinogens, preventing them from causing damage to the body. Lastly, phytochemicals can also assist the body in producing enzymes that aid in various metabolic processes. Therefore, all of the given statements are true and accurately describe how phytochemicals protect the body.

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  • 35. 

    Which foods are good sources of phytochemicals?

    • A.

      Fats and oils

    • B.

      Fruits and Vegetables

    • C.

      Poultry and Fish

    • D.

      Red Meats

    Correct Answer
    A. Fats and oils
    Explanation
    Fats and oils are not good sources of phytochemicals. Phytochemicals are naturally occurring compounds found in plants, particularly in fruits, vegetables, whole grains, nuts, and seeds. These compounds have been shown to have various health benefits, such as antioxidant and anti-inflammatory properties. Therefore, the correct answer should be fruits and vegetables, not fats and oils.

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  • Mar 17, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 30, 2015
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