Which one of the following fats contains unsaturated fatty acids?

Options

A. Ghee
B. Curd
C. Gingely oil
D. Fish oil

Answer

To determine which fat contains unsaturated fatty acids, we can follow these steps:

### Step 1: Understand Unsaturated Fatty Acids
Unsaturated fatty acids are characterized by having one or more double bonds in their carbon chains. This is in contrast to saturated fatty acids, which have no double bonds and are fully "saturated" with hydrogen atoms.

### Step 2: Analyze the Options
We have four options to consider:
1. Ghee
2. Curd
3. Gingerly oil (Sesame oil)
4. Fish oil

### Step 3: Evaluate Each Option
- **Ghee**: Ghee is primarily composed of saturated fatty acids. Therefore, it does not contain unsaturated fatty acids.

- **Curd**: Curd contains both saturated and unsaturated fatty acids, but it is not primarily known for its unsaturated content.

- **Gingerly Oil (Sesame Oil)**: Sesame oil is known to contain unsaturated fatty acids, although in lesser amounts compared to some other oils.

- **Fish Oil**: Fish oil is rich in unsaturated fatty acids, containing multiple double bonds in its fatty acid chains (typically five to six). This makes fish oil a significant source of unsaturated fatty acids.

### Step 4: Identify the Best Option
While both gingerly oil and fish oil contain unsaturated fatty acids, fish oil has a higher concentration of them. Therefore, the option that contains the most unsaturated fatty acids is:

**Correct Answer: Fish Oil (Option D)**