**Question:** Mid day meal should provide: September 2011

**Core Concept:** Nutritional requirements for children in school-based nutrition programs.

**Why the Correct Answer is Right:**

The correct answer, **Option C: Calcium**, is crucial for the success of school-based nutrition programs, specifically in addressing malnutrition and ensuring optimal growth and development in children. Calcium plays a vital role in maintaining healthy bones and teeth, facilitating muscle and nerve function, and is essential for blood clotting and blood pressure regulation.

**Why Each Wrong Option is Incorrect:**

**Option A: Iron** is important for the production of red blood cells and oxygen transport, but it is not the primary focus of a mid-day meal program. Although iron deficiency can contribute to anemia, the primary goal of such programs is to address other nutritional deficiencies, such as calcium, vitamins, and proteins.

**Option B: Protein** is essential for growth, repair of tissues, and formation of enzymes and hormones. However, focusing solely on protein in a mid-day meal program may not address other critical nutritional requirements, like calcium and vitamins.

**Option D: Vitamins** are vital for various physiological processes, including vision, bone health, immune function, and skin health. However, focusing solely on vitamins in a mid-day meal program may not address other essential nutrients, such as calcium and proteins.

**Clinical Pearl / High-Yield Fact:**

**Option C: Calcium** is a key component of school-based nutrition programs, particularly in India where malnutrition is prevalent. Midday meals must aim to provide a balanced diet containing essential nutrients like calcium, protein, iron, and vitamins to ensure optimal growth, development, and overall health of school children.

**Correct Answer:** Calcium