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Nutrient Needs

Nutrient Needs. Nutrition. The study of how your body uses the food you eat. Malnutrition. Poor nutrition over an extended period of time. Body does not get what it needs from food. Body does not have the nutrients it needs for energy, growth, repair and the regulation of

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Nutrient Needs

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  1. Nutrient Needs

  2. Nutrition • The study of how your body uses the food you eat.

  3. Malnutrition • Poor nutrition over an • extended period of time. • Body does not get what it needs from food • Body does not have the nutrients it needs for • energy, growth, repair and the regulation of • various body processes.

  4. So what do we eat? • Food is made up of Nutrients….. • a chemical found in foods, critical to human growth and function. • Nutrients… • Supply energy • Help build cells and tissues • Regulate body processes

  5. Malnutrition • Causes overweight and underweight health situations • Delays or inhibits growth and development as well as resistance to diseases in children • Affects teenage girls in childbearing years • Severely affects unborn child in pregnant women • Affects your health and life span

  6. Nutrients • Carbohydrates • Fats • Proteins • Vitamins • Minerals • Water

  7. Carbohydrates • #1 ENERGY source • Mainly from plant sources • Whole grain—important for fiber • Fiber –non digestible 20 – 35 g/day (age + 5) • Two types---simple and complex • 4 Calories/gram • All must get broken down into simple sugars for the body to absorb • Glucose, sucrose, fructose, maltose, lactose, starch, cellulose

  8. Fats • Promote healthy skin and cell growth • Saturated fats  raise LDL • Unsaturated fats  may lower cholesterol • Monounsaturated and Polyunsaturated fats • Hydrogenation—Crisco • Trans fatty acids—partially hydrogenated oils • 9 calories/gram • Energy source– transport nutrients (fat sol. Vit) • Excess stored as fat in the body • Cholesterol—LDL , HDL a fat like substance • Adds flavor to foods

  9. Protein • The chemical building blocks of the body needed for growth, maintenance and repair of tissues. • Repair body tissues, immune system • 1/5 of entire body weight • Excess stored as fat • Chains of amino acids—22 needed 9 essential • Complete proteins–animal source and soy • Incomplete proteins—missing 1 key amino acid • Kwashiorkor—deficiency • 4 calories/gram

  10. Vitamins • Keep body tissues healthy and help systems function properly • Fat soluble—ADEK • Water soluble—C, B • Organic • A—vision—beta carotene—dark green leafy and yellow/orange • D—calcium absorption—sunshine vitamin—fortified milk rickets • E– antioxidant, clear skin nuts and oils, green leafy veggies • K—clotting of the blood green leafy veggie, daily, egg yolks • C—immune system—ascorbic acid, maintain healthy bones, teeth, iron absorption, antioxidant scurvy • B—in all grains— • Niacin—b3 nervous system and carbs to energy pellagra • Riboflavin b2 carbs to energy • Thiamin b1 carbs to energy, nervous system beriberi • Folate—birth defects, builds red blood cells with b12 green leafy veggies, grains

  11. Minerals • Macro and micro minerals (trace elements) • Inorganic • Calcium-bone growth , osteoporosis • Phosphorus-with calcium, build body cells • Sodium, chlorine, potassium-osmosis-fluid balance • Iron-carries oxygen in blood • Zinc-body heals, growth of tissues • Fluorine-strengthens teeth-water • Iodine-bodies use of energy-Iodized salt

  12. Water • Critical to survival • 60% of your body (80% of blood) • Needed in most chemical reactions in body • Hydration • Temperature control of the body • Weight 3-8=new needs in glasses/day • Sources—water, juices, milk, fruit, soup etc..

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