Adult IFA tablets contain:-
**Core Concept**
The question pertains to the composition of adult Iron and Folic Acid (IFA) tablets, which are commonly used to prevent and treat iron deficiency anemia. **Iron** and **folic acid** are essential components.
**Why the Correct Answer is Right**
Although the exact composition is not provided, typically, adult IFA tablets contain 100 mg of **elemental iron** and 500 mcg of **folic acid**. The **iron** is usually in the form of **ferrous sulfate** or **ferrous fumarate**, and it helps in the production of **hemoglobin**.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the specific details, we cannot directly address why this option might be incorrect, but generally, IFA tablets' standard composition does not widely vary.
**Option B:** Similarly, without specifics, it's challenging to pinpoint the error, but adult formulations usually have a standardized amount of iron and folic acid.
**Option C:** Again, lacking details, but IFA supplements are designed to meet specific nutritional needs, and their composition is based on preventing deficiency.
**Option D:** This option would be incorrect if it does not align with the standard adult dosage of iron and folic acid.
**Clinical Pearl / High-Yield Fact**
It's crucial to remember that **iron supplementation** should be taken on an empty stomach to enhance absorption, but **folic acid** absorption is not as affected by food.
**Correct Answer:** Correct Answer: D. 100 mg elemental iron and 500 mcg folic acid.