1. The Importance of Nutrition
Nutrition for Health
The Importance of Nutrition

2. Chapter 10 Lesson 1
Nutrition – the process by which your body takes in and uses food.
Nutrients – substances in food that your body needs to grow, to repair itself, and to supply you with energy.
Calorie – a unit of heat used to measure the energy your body uses and the energy it receives from food.

3. What Influences your Food Choices
Hunger – the natural physical drive to eat, prompted by the body’s need for food.
Appetite – the psychological desire for food.

4. Giving Your Body What It Needs
Your body uses nutrients in many ways:
As an energy source
To heal, and build and repair tissue
To sustain growth
To help transport oxygen to cells
To regulate body functions

5. Carbohydrates
Starches and sugars found in foods, which provide your body’s main source of energy.
45-65% of your daily calories
Three types of carbohydrates
Simple Carbohydrates – sugars such as fructose and lactose
Occur naturally in fruits, dairy products, honey, and syrup
Added to processed foods such as cold cereals, bread, and bakery products
Complex Carbohydrates– or starches
Long chains of sugars linked together
Sources include; grains, grain products such as bread and pasta, beans, and root vegetables
Fiber – a tough complex carbohydrate that the body cannot digest
Moves waste through the body at an appropriate rate.

6. Proteins
Nutrients the body uses to build and maintain its cells and tissues.
Your body needs 20 amino acids; the amount you need depends on gender and age.
Body can make all but 9
These 9 are essential amino acids
Complete proteins
Contain all 9 essential amino acids
Include all animal products and soy
Incomplete proteins
Usually missing one or more amino acid
Includes plant proteins such as grains, seeds, and legumes

7. Fats
Dietary fats are composed of fatty acids; fat in all foods is a combination of saturated and unsaturated fats:
Unsaturated fats – vegetable oils, nuts and seeds
Can lower your risk of heart disease.
Saturated fats – found mostly in animal-based foods; some plant fats including palm, coconut, and palm kernel oils.
Saturated fats can increase your risk of heart disease.
Trans fats – formed by a process called hydrogenation adding hydrogen to vegetable oils.
Found in many snack foods, packaged foods, and cookies and crackers.
Can raise total cholesterol which increases your risk of heart disease.

8. Health Issues Related to Dietary Fat
Body needs some fat to function properly.
Foods containing a lot of fat are generally high in calories.
Eating a lot of fat can lead to unhealthy weight gain and obesity.

9. Vitamins
Compounds found in food that help regulate many body processes
Water-Soluble – vitamin C, folic acid, and B vitamins
Dissolve in water and pass easily into the blood stream
Body does not store these vitamins
Removed by the kidneys
Fat-Soluble – vitamins A,D,E, and K
Stored in fat for later use
Can become toxic if too much are consumed.

10. Minerals
Elements found in food that is used by the body.

11. Water Essential for most body functions
Moving food through the digestive tract
Digestion
Transporting nutrients and removing
waste
Storing and releasing heat
Cooling the body
Cushioning the eyes, brain and spinal cord
Lubricating joints

12. What healthy eating is not…

13. HEALTHY EATING