nutrition n.
Skip this Video
Loading SlideShow in 5 Seconds..
NUTRITION PowerPoint Presentation
Download Presentation
NUTRITION

Loading in 2 Seconds...

  share
play fullscreen
1 / 13
Download Presentation

NUTRITION - PowerPoint PPT Presentation

dotty
189 Views
Download Presentation

NUTRITION

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. NUTRITION

  2. Introduction • You eat about 1000 meals a year. Does that statistic change the way you feel about the importance of eating “right”? • Fact or Fiction p161 • Benefits of proper nutrition • Energy (mood?) • Bone and muscle strength • Complexion

  3. Malnutrition • Malnutrition = poor nutrition • Malnutrition can be: • Under nutrition – too little • Over nutrition – too much (can you get too much?)

  4. Choosing Nutritious Foods • Use the Daily Food Guide • Control calories (what is a calorie?) • How well do you eat inventory p168

  5. Energy from Food • Nutrients that provide energy: Carbohydrates, Fats, Proteins • Carbs – glucose (4 cal/g) • Fat – fatty acids (9 cal/g) • Protein – amino acids (4 cal/g) • Alcohol – provides energy, but not a nutrient (why?) • Does not promote growth, maintenance, or repair of the body

  6. Energy from Food • Calories – unit used to measure energy • Not units of fattening power or fat. • Energy storage: • Glycogen – glucose stored in liver and muscles as this • Fat – under the skin • When glucose levels too low, hypothalamus sends out signal that you are “hungry” • Unused glucose is stored as fat • Balanced meal helps slow down glucose/carbohydrate use (what type of nutrient does this?)

  7. Carbohydrates • Sugar glucose in blood • Stored glucose in liver and muscles • Types of carbs: • Starch (main energy source for humans) – types? • Fiber (not energy source) – helps digestive tract • Sugars – some are “empty calories”…why? • Glucose – body’s fuel • Fructose – fruits and honey • Sucrose – table sugar • Lactose – milk • 60% of calories

  8. Fats • Nearly all body’s tissues rely on fat to provide energy • Two main forms • Saturated – mainly from animal sources, heart and artery issues • Unsaturated – oils, plant sources • Cholesterol – type of fat made from saturated fat, two types (HDL/LDL • 30% of calories

  9. Protein • Bodybuilding nutrient • Meats, fish, eggs, cheese, milk • Grains, beans • Essential amino acids – found in some proteins needed for building human tissues • Not enough protein in diet – immune cells weaken (can’t build more), hair can fall out, skin can change

  10. Vitamins • Help body processes • No energy, but can help facilitate energy release from carbs, fats, and proteins • Two types • Fat soluble – remain in body longer, dissolves in fat • Water soluble – dissolve in water, leave body sooner • Pros and cons of both?

  11. Vitamins – Fat Soluble • Vitamin A – vision and bones, skin, resistance to infection (dark green and deep yellow vegetables, orange fruits and vegetables, fortified foods) • Vitamins D, E, and K • Best way to get Vitamin D? • supplements can cause toxic buildups

  12. Minerals • Some are in tiny amounts (trace minerals), but are essential to proper body functioning • Calcium – most abundant – bone growth – milk, dairy, and what else? • Osteoporosis – gradual bone loss from deficiency in calcium and vitamin A • Iron – carries oxygen in blood, need more if you are growing or a female (why?) • Anemia – iron levels too low (weak, tired, apathy) • Electrolytes – (sodium, chloride, potassium) – maintain proper balance of fluids, carry a charge

  13. Water • Most essential nutrient • Carries oxygen, nutrients, wastes, and other materials from place to place • 60% of bod’s weight