Which is a rich source of vitamin A –
**Core Concept**
Vitamin A is an essential nutrient that plays a critical role in maintaining healthy vision, immune function, and skin health. It is a fat-soluble vitamin that can be obtained through dietary sources or synthesized in the body from beta-carotene.
**Why the Correct Answer is Right**
Vitamin A is primarily found in animal-derived foods, particularly those that are rich in retinol. Liver from animals such as beef, chicken, and fish is an excellent source of vitamin A due to its high content of retinol and retinyl esters. This is because the liver stores and concentrates vitamin A, making it a rich source of this essential nutrient.
**Why Each Wrong Option is Incorrect**
**Option A:** This distractor is incorrect because it does not specify a rich source of vitamin A.
**Option B:** This distractor is incorrect because it is not a well-known source of vitamin A.
**Option C:** This distractor is incorrect because it is a plant-based food that is not a rich source of vitamin A.
**Clinical Pearl / High-Yield Fact**
It is essential to note that excessive intake of vitamin A can lead to toxicity, which can cause symptoms such as headache, dizziness, and nausea. Therefore, it is crucial to consume vitamin A-rich foods in moderation.
**Correct Answer:** D. Liver from animals.