CHAPTER 4 LESSON 1. THE IMPORTANCE OF NUTRITION . LEGEN… DARY B.LYNE CARRIERE & AWESOME KATIE LAFORCE. Personal fitness includes physical actively and healthy eating . Healthy eating means taking the appropriate amounts of nutrients each day.
THE IMPORTANCE OF NUTRITION
LEGEN… DARY B.LYNE CARRIERE & AWESOME KATIE LAFORCE
Personal fitness includes physical actively and healthyeating.
Healthy eating means taking the appropriate amounts of nutrients each day.
Nutrients: substances in food that your body needs for energy, proper growth, body maintenance and functioning.
6 Classes of Nutrients:
Nutrition: the study of food and how your body uses the substances in food
Influences on Your Food Choices
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Everything you do- needs energy. Energy comes from; carbohydrates, proteins and fats
Carbohydrates – starches and sugars found in food. They are the body’s chief source of energy
Proteins -nutrients that help build, maintain, and repair body tissues. When necessary they are secondary source of energy
Fats-supply a concentrated form of energy that help transport other nutrients to locations in the body where needed
Energy is also measured in calories; the amount of energy needed to raise the temperature of 1 kilogram of water 1 degree Celsius
As levels of physical activity increase, so does body’s demand for more calories ;
Carbohydrates Provides 4 calories of energy. More effiecent then fat, because it requires less oxygen to convert to energy
Simple Carbs - sugars; found in fruits, candy, and soda. Absorbs quickly into bloodstream
Complex Carbs – Starches; found in some vegetables (potatoes), bread, cereals, pasta, rice and dry beans.
Take more time to break down but supply more vitamins. Better source of energy.
45-65% of consumed calories a day should be from carbohydrates
Carbs in the Body
Carbs must convert to a simple sugar; glucose before it can be used. Excess glucose is stored in liver, and muscles as glycogen, excess glucose is stored as FAT.
Dietary Fiber –special subclass of complex carbs that aid in digestion. Some fibers lower cholesterol in blood, and help control diabetes, reducing blood glucose levels
For our age; 38 grams of fiber for Males and 36 for females daily Whole grain products, vegetables, and fruits. Keep you full and low in calories.