Egg yields about ——-K cal of energy –

**Core Concept**
Egg is a rich source of protein and calories, and its energy content is an essential aspect of nutrition. The energy yield from egg is determined by its macronutrient composition, primarily protein, fat, and carbohydrates.

**Why the Correct Answer is Right**
The energy content of egg is approximately 140-150 kcal (kilo calories) per large egg. This is due to the egg's composition of about 6-7 grams of protein, 5-6 grams of fat, and negligible carbohydrates. The energy yield from protein is approximately 4 kcal/g, while fat yields about 9 kcal/g. The energy from egg is thus predominantly derived from its protein and fat content.

**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect - Egg does not yield approximately 100 kcal of energy.
**Option B:** Incorrect - Egg does not yield approximately 200 kcal of energy.
**Option C:** Incorrect - Egg does not yield approximately 250 kcal of energy.

**Clinical Pearl / High-Yield Fact**
Eggs are an excellent source of protein for individuals with high energy requirements, such as athletes or those with certain medical conditions. However, it's essential to consume eggs in moderation due to their high cholesterol content.

**Correct Answer: . 145 kcal.**