Energy

Definition

Energy is the capacity to do work and is essential for all bodily functions. In nutrition, it is primarily derived from macronutrients like carbohydrates, fats, and proteins.

5 Must Know Facts For Your Next Test

1. Energy intake must balance energy expenditure to maintain a healthy body weight.
2. Fats provide the most energy per gram compared to carbohydrates and proteins.
3. The body's metabolic processes convert food into usable energy through digestion.
4. Adequate energy levels are crucial for optimal gastrointestinal function and overall health.
5. Chronic energy imbalance can lead to conditions such as obesity or malnutrition, impacting gastrointestinal wellness.

Review Questions

• What macronutrient provides the highest amount of energy per gram?
• Why is balancing energy intake and expenditure important for gastrointestinal health?
• How does the body convert food into usable energy?

Related terms

Calorie:

A unit of measurement for energy provided by food and beverages.

Metabolism:

The set of life-sustaining chemical reactions that process nutrients into energy and build cellular structures.

Macronutrients:

Nutrients required in large amounts that provide the bulk of our daily caloric intake, including carbohydrates, fats, and proteins.