W1-L1: Introduction

Question 1

What is Nutrition?

Answer 1

The study of how food supplies nutrients to the body and affects health and life

Question 2

The Science of Nutrition involves what
7 processes?

Answer 2

1. Consumption or ingestion
2. Digestion
3. Absorption
4. Metabolism
5. Transport
6. Storage
7. Elimination

Question 3

What are Nutrients?

Answer 3

Substances that elicit a biochemical or physiological function in the body

Question 4

What is the fuction of Nutrients? (3)

Answer 4

1. Promotion of growth and development
2. Provision of energy
3. Regulation of metabolism

Question 5

What are the Two categories of nutrients?

Answer 5

• Macronutrients: carbohydrate, protein, fats and water
• Micronutrients: vitamins and minerals

Question 6

What are Carbohydrates used for?

What are good sources of Carbs?

Answer 6

• Glucose is a preferred fuel source
• Carbohydrate can be stored in the body as an energy reserve (i.e. liver and muscle glycogen)
• Good sources of carbs include rice, wheat products, grains, beans, legumes, fruits, vegetables, & milk

Question 7

What is Protein used for?

What are good sources of Protein?

Answer 7

• Supports cell & tissue growth, maintenance, & repair
• Unlike carbohydrate and fat; protein is not stored in reserve in the body
• Good sources of protein include seafood, meat, milk products, soy products, egg whites, beans, and some plant foods.

Question 8

What are Fats used for?

What are good sources of Fats?

Answer 8

• Fat can be stored in limitless quantities in the body as an energy reserve
• Good sources of fat include fish, lean animal products, nuts, seeds, oils with unsaturated fat (e.g., olive, canola), avocado and egg yolks.

Question 9

What are Vitamins & Minerals used for?

Answer 9

• Don’t supply energy but are involved in releasing energy from food e.g. Thiamine (B1) and for structural components e.g. calcium and bone
• Support body growth, development, and maintenance and the operation of many essential functions
• Macrominerals and microminerals / trace minerals (<100mgs daily)

Question 10

Why is water important?

Answer 10

• It plays a role in the regulation of nerve impulses, muscle
  contraction, nutrient transport, waste removal, and regulation of body temperature.
• An individual’s water needs depend on health status and physical activity (more water lost through sweat = greater needs)