5.01C     Nutrients
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5.01C Nutrients

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.

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5.01C Nutrients




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Presentation on theme: "5.01C Nutrients"— Presentation transcript:

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5.01C Nutrients

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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

Lipids (Fats)

Proteins

Vitamins

Minerals

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Water Carbohydrates Fats Protein Vitamins Minerals

Sugars

Starches

Cellulose

The Six Classifications of Nutrients

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Proteins Carbohydrates Fats

These Nutrients Have Calories

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Definition of a Calorie:

The unit used to measure

the energy value of food.

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Calories per gram:

Protein 1 Gram = 4 calories

Carbohydrates 1 Gram = 4 calories

Fat 1 Gram = 9 calories

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

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Key Nutrient: Water

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Aids digestion and cell growth and maintenanceFacilitates chemical reactionsLubricates joints and cellsRegulates body temperature

Function

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Sources

LiquidsFoodBreakdown of energy nutrients

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Key Nutrient: Carbohydrates

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Function

Supplies the energy

Provides fiber

Help the body digest fats

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Sources

Sugars: honey, jam, molasses, candy, table sugarFiber: fruits, vegetables, whole grainsStarch: breads, cereals, pasta

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Key Nutrient: Fats

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Function

Supply energyCarry fat-soluble vitaminsInsulate the bodyProtect organsProvide essential fatty acids

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Types of FatsSaturated: dairy products, meats, lard, coconut and palm oilsUnsaturated: fish, nuts, vegetable oils

Sources

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The fat-like substance in found in body cells. This substance clogs arteries.

Cholesterol

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Key Nutrient: Proteins

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Builds and repairs muscles and cell tissuesHelps the body make important substancesRegulates body processesSupplies energy

Functions

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Sources

Complete proteins: dairy products, eggs, fish, meat and poultry.Incomplete proteins: beans, grains and nuts.

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Key Nutrient: Vitamins

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Fat-soluble vitaminsdissolve in fatsare stored in fatty tissues of the bodyWater-soluble vitaminsdissolve in waterare not stored in the body

Function

Vitamins are divided into two main groups.

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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

Fat-Soluble Vitamins

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Water-Soluble Vitamins

Nutrient

Functions

Sources

B-Complex

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

Vitamin C

(ascorbic acid)

Keeps nervous system healthy

Releases energy from food

Helps promote healthy gums and tissues

Pork, whole grain breads and cereals

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Key Nutrient: Minerals

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Minerals

Nutrient

Functions

Sources

Calcium

Builds bones and teeth

Helps muscles and nerves work

Milk, yogurt, cheese, salmon, dark veggies

Iron

Combines with protein to make hemoglobin. Helps cells use oxygen

Liver, spinach, raisins and molasses

Potassium

Helps nerves and muscles

Balances body water

Potatoes, bananas, prune juice and tomato products

Sodium

Helps nerves and muscle function

Salt, soy sauce, processed foods and country ham

Iodine

Promotes normal functioning of the thyroid gland

Iodized salt and salt water fish

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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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