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5.01C Nutrients11 5.01C What is a Nutrient? A nutrient is a chemical substance in food that helps maintain the body. You need over 50 nutrients, which.

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Presentation on theme: "5.01C Nutrients11 5.01C What is a Nutrient? A nutrient is a chemical substance in food that helps maintain the body. You need over 50 nutrients, which."— Presentation transcript:

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2 5.01C Nutrients C What is a Nutrient? A nutrient is a chemical substance in food that helps maintain the body. You need over 50 nutrients, which can be divided into six groups. Water Carbohydrates Lipids (Fats) Proteins Vitamins Minerals

3 5.01C Nutrients22 Water Carbohydrates Fats Protein Vitamins Minerals Sugars Starches Cellulose The Six Classifications of Nutrients

4 5.01C Nutrients33 Proteins Carbohydrates Fats These Nutrients Have Calories

5 5.01C Nutrients44 Definition of a Calorie: The unit used to measure the energy value of food.

6 5.01C Nutrients55 Calories per gram: Protein 1 Gram = 4 calories Carbohydrates 1 Gram = 4 calories Fat 1 Gram = 9 calories

7 5.01C Nutrients66 Variables which affect nutrient needs: 1. Age 2. Gender 3. Activity Level 4. Climate 5. Health 6. State of nutrition

8 5.01C Nutrients7 Key Nutrient: Water 7

9 5.01C Nutrients88 Aids digestion and cell growth and maintenance Facilitates chemical reactions Lubricates joints and cells Regulates body temperature Function PPB5.01c_Nutrients

10 5.01C Nutrients99 Sources Liquids Food Breakdown of energy nutrients PPB5.01c_Nutrients

11 5.01C Nutrients10 Key Nutrient: Carbohydrates 10 PPB5.01c_Nutrients

12 5.01C Nutrients11 Function Supplies the energy Provides fiber Help the body digest fats

13 5.01C Nutrients12 Sources Sugars: honey, jam, molasses, candy, table sugar Fiber: fruits, vegetables, whole grains Starch: breads, cereals, pasta

14 5.01C Nutrients13 Key Nutrient: Fats 13

15 5.01C Nutrients14 Function Supply energy Carry fat-soluble vitamins Insulate the body Protect organs Provide essential fatty acids

16 5.01C Nutrients15 Types of Fats Saturated: dairy products, meats, lard, coconut and palm oils Unsaturated: fish, nuts, vegetable oils Sources

17 5.01C Nutrients16 The fat-like substance in found in body cells. This substance clogs arteries. Cholesterol

18 5.01C Nutrients17 Key Nutrient: Proteins 17

19 5.01C Nutrients18 Builds and repairs muscles and cell tissues Helps the body make important substances Regulates body processes Supplies energy Functions

20 5.01C Nutrients19 Sources Complete proteins: dairy products, eggs, fish, meat and poultry. Incomplete proteins: beans, grains and nuts.

21 5.01C Nutrients20 Key Nutrient: Vitamins 20

22 5.01C Nutrients21 Fat-soluble vitamins dissolve in fats are stored in fatty tissues of the body Water-soluble vitamins dissolve in water are not stored in the body Function Vitamins are divided into two main groups.

23 5.01C Nutrients22 NutrientFunctionsSources Vitamin AKeeps skin and mucus membranes healthy Prevents night blindness Promotes growth Butter, dark green and yellow fruits and vegetables, egg yolk, liver, whole and fortified milk Vitamin DBuilds strong bones and teethEgg yolk; fortified butter, margarine, and milk; the sun Vitamin EActs as an antioxidant to protect cell membranes Eggs, liver, salad oils, whole grain cereals Vitamin KHelps blood clotCauliflower, egg yolk, organ meats Fat-Soluble Vitamins

24 5.01C Nutrients23 Water-Soluble Vitamins NutrientFunctionsSources B-ComplexHelps wounds heal Helps fight infection Helps nervous tissue function healthy Plays important role in breakdown of proteins fats and carbohydrates Oranges, grapefruits, tangerines, cantaloupe, broccoli, citrus fruits, tomatoes and raw cabbage Vitamin C (ascorbic acid) Keeps nervous system healthy Releases energy from food Helps promote healthy gums and tissues Pork, whole grain breads and cereals

25 5.01C Nutrients24 Key Nutrient: Minerals 24

26 5.01C Nutrients25 Minerals NutrientFunctionsSources CalciumBuilds bones and teeth Helps muscles and nerves work Milk, yogurt, cheese, salmon, dark veggies IronCombines with protein to make hemoglobin. Helps cells use oxygen Liver, spinach, raisins and molasses PotassiumHelps nerves and muscles Balances body water Potatoes, bananas, prune juice and tomato products SodiumHelps nerves and muscle functionSalt, soy sauce, processed foods and country ham IodinePromotes normal functioning of the thyroid gland Iodized salt and salt water fish

27 5.01C Nutrients26 Food For Thought Avoid excesses of some vitamins and minerals. To promote good nutrition and maintain good health: Eat a variety of foods from the food guide pyramid. Drink plenty of water Daily exercise Seek the advice of a physician or dietician before taking supplements


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