Fish is a pure source of :
**Core Concept**
Fish is a rich source of omega-3 fatty acids, particularly EPA and DHA. These essential fatty acids play a crucial role in heart health, brain function, and inflammation regulation.
**Why the Correct Answer is Right**
Omega-3 fatty acids are primarily found in fatty fish such as salmon, sardines, and mackerel. They are essential for the proper functioning of the heart, brain, and other organs. EPA and DHA have anti-inflammatory properties and help in reducing the risk of cardiovascular diseases. They also play a vital role in fetal brain development during pregnancy.
**Why Each Wrong Option is Incorrect**
**Option A:**
While fish is a good source of protein, it is not the purest source of protein. In fact, fish can be high in mercury and other pollutants, which can be detrimental to health.
**Option B:**
Fish is not a rich source of vitamin C. In fact, fish can be low in vitamin C, especially if it is cooked for a long time.
**Option C:**
Fish is not a pure source of vitamin B12. While it is a good source of vitamin B12, it can also be found in other animal products such as meat, eggs, and dairy products.
**Clinical Pearl / High-Yield Fact**
Remember that fatty fish are a rich source of omega-3 fatty acids, but it's essential to consume them in moderation to avoid mercury poisoning.
**Correct Answer:** D.