Which taste of food can be detected :
by the sides of the tongue?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about which taste can be detected by the sides of the tongue.

2. **Identifying the Role of the Tongue**: The tongue is a vital organ for tasting food, and it has different regions that are sensitive to different tastes.

3. **Mapping Taste Sensations**:
- The tip of the tongue is primarily sensitive to sweetness.
...