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Questions and Answers
What is the primary function of Vitamin A in the body?
What is the primary function of Vitamin A in the body?
What is the result of a deficiency in Thiamine?
What is the result of a deficiency in Thiamine?
What is the primary source of Vitamin A?
What is the primary source of Vitamin A?
What is the role of Thiamine in the body?
What is the role of Thiamine in the body?
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What is the effect of Vitamin A deficiency on oral health?
What is the effect of Vitamin A deficiency on oral health?
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What is the primary function of Vitamin D?
What is the primary function of Vitamin D?
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What is the recommended daily intake of Vitamin C?
What is the recommended daily intake of Vitamin C?
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What are the oral manifestations of Vitamin C deficiency?
What are the oral manifestations of Vitamin C deficiency?
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What is the effect of Vitamin D deficiency on bone health?
What is the effect of Vitamin D deficiency on bone health?
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What are the primary sources of Vitamin C?
What are the primary sources of Vitamin C?
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What is the function of Vitamin E in the body?
What is the function of Vitamin E in the body?
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What is a consequence of Vitamin D deficiency?
What is a consequence of Vitamin D deficiency?
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What is the source of Vitamin K?
What is the source of Vitamin K?
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What is the recommended daily intake of Vitamin D?
What is the recommended daily intake of Vitamin D?
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What is the effect of Vitamin E deficiency?
What is the effect of Vitamin E deficiency?
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What is the function of Vitamin K in the body?
What is the function of Vitamin K in the body?
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Study Notes
Vitamins Overview
- Essential organic compounds required in small dietary amounts.
- Classifications:
- Fat-soluble (A, D, E, K)
- Water-soluble (C, B complex)
Vitamin C
- Necessary for synthesizing dopamine and bile acids.
- Deficiency leads to Scurvy, resulting in symptoms like hemorrhage, impaired wound healing, and bone formation issues.
- Oral manifestations include bleeding gums and loose teeth.
- Rich sources: fruits and vegetables.
- Recommended Dietary Allowance (RDA): 60 mg/day.
Vitamin D
- Regulates calcium levels affecting the intestine, kidney, and bones.
- Formed from Vitamin D3 (cholecalciferol) after conversion to 1,25-dihydroxy vitamin D3.
- Deficiency causes Rickets in children and osteomalacia in adults, leading to softened bones.
- Associated with incomplete mineralization of teeth.
Vitamin A
- Functions as a precursor for retinal (visual cycle) and retinoic acid (epithelial cell maintenance).
- Deficiency results in night blindness and keratinization of epithelial cells.
- Oral health issues include gingivitis and periodontitis.
- Sources include orange/yellow vegetables, eggs, and fish liver oil.
- Retinoids are compounds with Vitamin A activity; β-carotene is a precursor to retinol.
Thiamine (Vitamin B1)
- Converted to thiamine pyrophosphate, essential for carbohydrate energy conversion and supporting cardiac and nervous functions.
- Deficiency leads to Beriberi, Wernicke-Korsakoff syndrome, polyneuritis, and cardiac issues.
- Oral manifestations: red, smooth sore tongue (satin-like appearance) and angular cheilitis.
- Found in beef, beans, nuts, bananas, and green peas.
Vitamin E
- Functions as a lipid-soluble antioxidant, preventing lipid damage.
- Deficiency linked to erythrocyte lysis.
- Sources include vegetables and wheat germ oil.
- RDA: 15 international units.
Vitamin K
- Serves as a coenzyme for the carboxylation of glutamate in blood clotting factors (prothrombin, factors VII, IX, and X).
- Rare deficiency can prolong blood clotting time.
- Oral manifestation includes gingival bleeding.
- Produced by intestinal bacteria.
- RDA: 70-140 µg may be appropriate.
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Description
Test your knowledge of vitamins D and E, including their sources, functions, and deficiency effects. Learn about the importance of these essential nutrients for our health.
