DO NOW: Last class I asked you to take notice of your cafeteria. Where there certain foods being advertised? Were those foods healthy or unhealthy? What are the lines like? Do you have little time to eat? What is the ratio of healthy to unhealthy choices? In a few sentences please tell me what you observed…

Lesson 2: Nutrients Your body uses nutrients in the following ways: As an energy source To heal, build, and repair tissue To sustain growth To help transport oxygen to cells To regulate body functions (heart, liver, blood, kidney, brain, etc.)

Nutrients that provide energy… Carbohydrates- starches and sugars found in foods which provide your body’s main source of energy Experts recommend getting 45 to 65 percent of daily calories from carbs Good carbs vs bad carbs ?

3 Types of 1. Simple- sugars such as fructose (fruits) and lactose (milk). 2. Complex- starches (bread, pasta, potatoes, rice) 3. Fiber-tough complex carbs that the body cannot digest. (Fiber helps you feel full) May reduce the risk of cancer, heart disease and type 2 diabetes

Carbohydrates SugarsStarchesFiber Description What kind of food item? Food Sources What kind of food items does it come from? Role in Body What does it do for your body? (give you energy, build cell tissue)

Proteins Proteins- nutrients the body uses to build and maintain its cells and tissues Made up of chemicals called amino acids (20 of them) 11 nonessential (body produces them) 9 essential (the body must get them from food)

Role of Protein Muscles, bones, skin, and internal organs are all constructed of protein Carries oxygen to the body’s cells Can be used as a source of energy

Fats (3 Types) Unsaturated fats- veg oils, nuts, and seeds. (moderate amounts may lower risk of heart disease) Saturated fats- found in meats and dairy products (consuming too much may increase your risk of heart disease) Trans fats- formed by a process called hydrogenation, which causes veg oil to harden (found in butter, snack foods, baked goods) Can raise your cholesterol level and increase your risk for heart disease

True or False? All fats are bad for your health

Answer False: Saturated fats and trans fats are bad for your health, but unsaturated fats are essential to the diet because the body cannot make them and needs them for vital functions

True or False? Eating too much fat causes weight gain

Answer False: Eating to many calories causes weight gain, regardless of whether the excess calories come from fats or nutrients

True or False? The best way to lose weight is to cut out fats

Answer False: Although fats have more calories per gram than other nutrients, they are more satisfying and keep you full longer, unlike eating sugary snacks and drinks

Short Video on how body uses fats and carbs for energy…

Other types of Nutrients… Vitamins- compounds found in food that help regulate many body processes Minerals-elements found in food that are used by the body Water-all body cells contain water

Read Lesson 2 Complete questions 1-5

Question 1 Which nutrients can your body use as a source of energy?

Question 2 What are essential amino acids? From what source do you obtain essential amino acids?

Question 3 How does eating calcium-rich foods as a teen protect your lifelong health?

Question 4 Explain how saturated fats and trans fats may cause illnesses later in life, like heart disease?

Question 5 What are the health benefits of eating a variety of fruits and vegetables?