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Discover the importance of food nutrition for energy, growth, repair, and well-being. Learn about essential nutrients, like carbohydrates, fats, proteins, vitamins, and minerals, for a balanced diet regimen. Find out how to achieve good nutrition through a plant-based diet, exercise, and proper nutrient intake. Avoid common nutrition misconceptions and make informed choices for a healthier lifestyle.
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Nutrition Health Mr. Gross
Food Affects • How we • Look • Feel • Act • Grow • Function
The way we eat is dictated by • Custom • Religion • Family • Pleasure • Lifestyle • Traditions • Health
Eating the correct kind and amount of food is important for energy and stamina
Food causes a chemical reaction Increases the state of well-being Provides energy
Food is used for • Energy • Growth • Repair
The FDA established the RDA and the RDA is reviewed every five years
RDA: Recommended Daily Allowance • Meets the needs of most people • Based on a 2000 cal diet
Smokers Daily RDA • Additional 100 mg of Vitamin C
Good Nutrition is not torture DO NOT • Deprive yourself of food • Force yourself to eat certain foods • Spinich • tuna • Buy expensive supplements • Wt Gain • slimfast
Good nutrition is often associated with rigidity, guilt and denial
The key to good nutrition is: • More plant food • Fewer animal foods • More exercise
Adequate diet should consist of: • 65% Carbohydrates • 20% Fat with <10% saturated fat • 15% Protein • 20-30 g Fiber
Essential Nutrients • Nutrients not made in the body or in insufficient amounts
Carbohydrates • Primary source of energy • 4 cal/gram • Starches and sugars from plant food
Cereals Potatoes Rice Breads pastas Nuts Seeds Grains Legumes Complex carbohydrates
If an over abundance of carbo’s are consumed • Carbohydrates are converted to fat • The fat is stored in the body as reserve energy
The body needs sugar from carbohydrates found in • Fruits • Vegetables • Breads
Why consume carbohydrates rather than fats • Energy required to convert fat to stored fat 75% • Energy required to convert carbohydrates to fat 97%
Refined/Processed Sugar used to make food taste betterIt has no nutritional value and leads to obesity
Sugar is hidden in prepared foods • 1 can of pop contains 9 tsp of sugar
Fats • Provide insulation and protection • Stored energy 9cal/gram • Healthy cell walls • Cholesterol metabolism • Healthy hair and nails
Fats also provide • Cholesterol metabolism • Circulate fate soluble vitamins • A,D,E & K • 1lb of fat=3500 cal
Fatty acids are necessary for growth and maintenance • Corn oil • Soybean oil • Peanut oil
Cholesterol • 300 mg max • Fatty wax like substance • Production of sex hormones • Oil for skin and hair • Production of bile acid • Sheath around the nerve fibers
High Density Lipoproteins (HDL) • Good cholesterol • Carries cholesterol from cells to liver • Smoothes damaged areas repaired by LDL
Low Density Lipoproteins (LDL) • Bad Cholesterol • Can not carry as much cholesterol • Some cholesterol is dropped along the way • Hardening of the arteries because of the build-up
Eggs Fish Milk Meat Cheese Poultry LDL Products
Protein • 1/5 of a persons body weight • Instrumental for muscles, bones, cartilage, skin, body tissue and fluid
Protein • Builds and repairs broken down muscles and tissues • Essential for growth and enzyme production • Enzymes promote or initiate chemical reactions • Protein in the less efficient source of energy
Protein • Last source of energy • Consumed in great quantities converted to fat and used as stored energy • Lack of protein affects alertness and mood • Animal protein more complete than plant protein
The body only stores a small amount of protein. Therefore, protein should be consumed on a daily basis
Americans eat 2-4 times the required amount of protein • Excess consumption of protein causes kidneys to overwork • Excess consumption of protein can lead to heart attack
A person should consume .8 grams of protein per kg of body weight • 130/2.2=59 kg 59 kg X 0.8=47 gr • 47 gr X 4 cal/gr = 188 cal • 3 oz of lean meat =179 calories • Active recreational people • 1.2-1.8 g/kg per day
High protein diets • More than 30% of total caloric intake form protein • Reported side effects • Calcium depletion • Fluid imbalance • Eventual hunger • Slower metabolism • Weight rebound • Energy loss
Vitamins • Substance containing compound • Used for growth and maintenance • Chemical reaction in the body
Water Soluble Vitamins • Vitamins that dissolve in water • Body not able to store these vitamins • Must be consumed daily • Source is vegetables
Vegetables should not be boiledvitamins are lost in the water if boiled
Fat soluble vitamins • Dissolved in fat • Can be stored in the body • Contained in meats and oils • A, D, E, & K • A&D are toxic to the body if consumed in large amounts
Vitamins are an important component for chemical reactions to convert food and energy
Minerals • Potassium: carries away heat produced by muscular exercise • Calcium: hard strong bones • Magnesium: change carbohydrates to energy • Iron: needed to carry oxygen (Anemia)
Water • Brain, muscle and body are 75% water • No nutrients and no calories • Aids in the removal of waste • Lubricates joints • Digestion and absorption of food • Protection of the fetus
Water Function • Carries nutrients to the cells • Increases the % of fat used for energy purposes • Decreases appetite • Maintains blood volume • Carries Hormones to the cells • Carries Antibodies throughout the body • Removal of waste product
Dehydration • Water is needed to cool itself • Adults should consume and excrete 3 qts of water per day • Strenuous work requires more water consumption • Average adult should consume 10 8oz glasses of water per day
Thirst is regulated by salt content in the blood diuretics increase urine excretion • Coffee • Tea • Pop
Improper Diet • Stroke High BP & Cholesterol • Heart Disease High Cholesterol • Cancer Low fiber high fat diet • Diabetes High sugar • Arteriosclerosis High cholesterol
65% Carbohydrates 20% Fat 15% Protein 10% Saturated fat 20-30 gr Fiber <300 mg Cholesterol 10% Sugar 5 gr Salt Adequate diet should consist of:
Diet • Excessive sodium intake draws water from the cells into the stomach • Hypertension increases blood flow
Goals of good nutrition • Decrease heart rate • Increase oxygen consumption • Increase flexibility • Increase strength