MCQ Detailed View

Vitamin B12, also known as cobalamin, is an essential water-soluble vitamin that plays a key role in maintaining a healthy nervous system, producing red blood cells, and supporting DNA synthesis. Unlike many vitamins, Vitamin B12 is not produced by plants. It is mainly found in foods of animal origin, such as dairy products, eggs, fish, poultry, and meat.

Among the given options, the correct answer is Milk. Milk and other dairy products such as yogurt and cheese are excellent natural sources of Vitamin B12. This makes them very important, especially for vegetarians who may not consume meat or fish. A single glass of milk can provide a significant percentage of the daily recommended intake of this vitamin.

On the other hand, cashew nuts, apples, and watermelon are healthy foods rich in vitamins, minerals, and antioxidants, but they do not contain Vitamin B12. Plant-based foods lack B12 naturally, which is why vegetarians and vegans are often advised to include fortified foods or supplements in their diet to avoid deficiency.

Vitamin B12 deficiency can lead to serious health problems such as pernicious anemia, fatigue, weakness, numbness in the hands and feet, and even neurological disorders if left untreated. Since B12 is stored in the liver for a long time, symptoms may take years to appear, making awareness and proper nutrition crucial.

In conclusion, the correct answer is Milk, as it is a reliable and easily accessible source of Vitamin B12. This MCQ highlights the importance of understanding vitamins and nutrition in everyday science, as they directly affect human health and well-being.