Name the following:
The condition that a person suffers due to deficiency of one or more essential elements in food.

Explanation

### Step-by-Step Solution:

1. **Understanding Nutrition**: Begin by recognizing that nutrition is essential for maintaining health. It includes various substances like carbohydrates, fats, vitamins, minerals, and water.

2. **Identifying Essential Elements**: Acknowledge that essential elements in food are crucial for the body to function properly. These elements must be consumed in adequate amounts.

3. **Recognizing Deficiency**: Understand that if a person does not consume enough of these essential elements, they may suffer from a deficiency.

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