Deficiency of which of the following causes Beri Beri in human beings?

Vitamin B1

The correct answer is Option (4)- Vitamin B1

 The deficiency of Vitamin B1 (Thiamine) causes Beriberi in human beings.

Explanation:

• Beriberi is a condition caused by a deficiency of vitamin B1 (thiamine).
• Thiamine is essential for the metabolism of carbohydrates. It plays a crucial role in converting carbohydrates into energy that the body's cells can use.

There are two main types of beriberi:

1. Wet Beriberi: Involves cardiovascular symptoms and may lead to heart failure.
2. Dry Beriberi: Affects the nervous system and can result in muscle weakness and nerve damage.

Beriberi is commonly associated with diets that lack sufficient thiamine, often seen in regions where polished rice is a staple food, as the polishing process removes much of the thiamine-rich outer layer of the rice.

Therefore, the correct answer is Vitamin B1 (Thiamine).