MCQ Detailed View

Vitamin A is a fat-soluble vitamin that plays a crucial role in maintaining healthy vision, proper immune system function, reproduction, and skin health. It exists in two main forms:

1. 
   

   Preformed Vitamin A (Retinol): Found in animal products such as liver, fish oil, and dairy products.

   
   


2. 
   

   Provitamin A Carotenoids (Beta-Carotene): Found abundantly in green leafy vegetables and orange-colored fruits and vegetables, which the body converts into retinol.

   
   

Major Sources of Vitamin A:

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  Green Leafy Vegetables: Spinach, kale, collard greens, and broccoli are rich in beta-carotene, a precursor to Vitamin A.

  
  


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  Colorful Vegetables and Fruits: Carrots, sweet potatoes, pumpkins, mangoes, and apricots are excellent sources.

  
  


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  Animal Sources: Liver, egg yolks, butter, and fortified milk are high in preformed Vitamin A.

  
  

Importance of Vitamin A:

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  Vision Health: Essential for forming rhodopsin, a light-sensitive protein in the eyes that supports night vision.

  
  


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  Immunity: Helps maintain strong immune defenses against infections.

  
  


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  Cell Growth and Skin Health: Supports healthy skin, mucous membranes, and organ function.

  
  


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  Reproduction and Development: Necessary for fetal growth and development during pregnancy.

  
  

Why Other Options Are Incorrect:

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  Seeds: Mainly sources of fats, proteins, and Vitamin E, not Vitamin A.

  
  


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  Fresh vegetables and fruits: Many are good, but green leafy vegetables specifically contain higher beta-carotene levels.

  
  


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  Sea foods: Provide Vitamin D, iodine, and omega-3 fatty acids, but are not the main source of Vitamin A compared to greens and liver.

  
  

Thus, the correct answer is Option A: Green leafy vegetables, as they are rich in beta-carotene, a natural compound the body converts into Vitamin A to support vision, immunity, and healthy skin.