1. 1. 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 can be divided into six groups. .. Water. Carbohydrates. ID: 493317 Download Presentation
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Presentation on theme: "5.01C Nutrients"— Presentation transcript:
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 can be divided into six groups.
Water Carbohydrates Fats Protein Vitamins Minerals
The Six Classifications of Nutrients
Proteins Carbohydrates Fats
These Nutrients Have Calories
Definition of a Calorie:
The unit used to measure
the energy value of food.
Calories per gram:
Protein 1 Gram = 4 calories
Carbohydrates 1 Gram = 4 calories
Fat 1 Gram = 9 calories
Variables which affect nutrient needs:1. Age 2. Gender 3. Activity Level 4. Climate 5. Health 6. State of nutrition
Key Nutrient: Water
Aids digestion and cell growth and maintenanceFacilitates chemical reactionsLubricates joints and cellsRegulates body temperature
Supply energyCarry fat-soluble vitaminsInsulate the bodyProtect organsProvide essential fatty acids
Types of FatsSaturated: dairy products, meats, lard, coconut and palm oilsUnsaturated: fish, nuts, vegetable oils
The fat-like substance in found in body cells. This substance clogs arteries.
Key Nutrient: Proteins
Builds and repairs muscles and cell tissuesHelps the body make important substancesRegulates body processesSupplies energy
Complete proteins: dairy products, eggs, fish, meat and poultry.Incomplete proteins: beans, grains and nuts.
Key Nutrient: Vitamins
Fat-soluble vitaminsdissolve in fatsare stored in fatty tissues of the bodyWater-soluble vitaminsdissolve in waterare not stored in the body
Vitamins are divided into two main groups.
NutrientFunctionsSourcesVitamin AKeeps skin and mucus membranes healthyPrevents night blindnessPromotes growthButter, dark green and yellow fruits and vegetables, egg yolk, liver, whole and fortified milkVitamin DBuilds strong bones and teethEgg yolk; fortified butter, margarine, and milk; the sunVitamin EActs as an antioxidant to protect cell membranesEggs, liver, salad oils, whole grain cerealsVitamin KHelps blood clotCauliflower, egg yolk, organ meats
Helps 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
Keeps nervous system healthy
Releases energy from food
Helps promote healthy gums and tissues
Pork, whole grain breads and cereals
Key Nutrient: Minerals
Builds bones and teeth
Helps muscles and nerves work
Milk, yogurt, cheese, salmon, dark veggies
Combines with protein to make hemoglobin. Helps cells use oxygen
Liver, spinach, raisins and molasses
Helps nerves and muscles
Balances body water
Potatoes, bananas, prune juice and tomato products
Helps nerves and muscle function
Salt, soy sauce, processed foods and country ham
Promotes normal functioning of the thyroid gland
Iodized salt and salt water fish
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
Seek the advice of a physician or dietician before taking supplements