Where is the digested food absorbed into the blood?

Answer

### Step-by-Step Solution:

1. **Understanding Digestion**:
- Digestion is the process where complex food substances (like proteins, carbohydrates, and lipids) are broken down into simpler, absorbable forms.

2. **Identifying the Digestive System**:
- The human digestive system consists of various organs, each playing a role in the digestion and absorption of food.

3. **Role of Different Organs**:
- **Mouth**: Some absorption occurs here, mainly of certain drugs.
- **Stomach**: Absorbs water, simple sugars, and alcohol.
- **Small Intestine**: This is the principal organ for the absorption of nutrients. Most digestion is completed here.

4. **Absorption in the Small Intestine**:
- The small intestine is responsible for absorbing the final products of digestion, which include:
- Glucose (from carbohydrates)
- Amino acids (from proteins)
- Fatty acids (from lipids)

5. **Role of the Large Intestine**:
- The large intestine primarily absorbs water and minerals, but it does not absorb digested food.

6. **Conclusion**:
- The digested food is mainly absorbed into the bloodstream in the **small intestine**.