List out the five deficiency disorders caused by improper consumption of vitamins.

Explanation

**Step-by-Step Solution:**

1. **Identify Vitamin A Deficiency**: Vitamin A is essential for good vision. A deficiency can lead to night blindness, which affects our ability to see in low light conditions.

2. **Identify Vitamin B Deficiency**: Vitamin B is crucial for maintaining mental clarity and overall brain function. A deficiency in Vitamin B can lead to a condition known as beriberi, which can cause mental retardation and other cognitive issues.

3. **Identify Vitamin C Deficiency**: Vitamin C is important for maintaining healthy gums and skin. A lack of Vitamin C can result in scurvy, which is characterized by gum disease and other health problems.

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