Post on 26-Dec-2015
transcript
CHAPTER 5
Nutrition
Factors That Influence One’s Food Choices
Physical Need: hungerPsychological desire: appetite (wanting to
eat) Appetite is a learned behavior. It is a
desire rather than a need.Environment: culture, family, friends,
advertising, time, moneyYour emotions: boredom, stressed,
depressed
Nutrients
Carbohydrates
Proteins
Fats
Carbohydrates
Starch/sugarSimple: fructose found naturally in food, and
sucrose in table sugarComplex: starch found in grains, seeds, nuts,
legumes4 calories per gram55-65% of our calories need to come from
carbohydratesBody’s main source of fuel
Protein
Help build and maintain body tissuesComplete proteins: contains all of the
essential amino acids (fish, meat, eggs, yogurt)
Incomplete proteins: lack amino acids (nuts & grains)
4 calories per gram
FATS
Fats are lipids - a fatty substance that does not dissolve in liquid
Concentrated form of energyCarries vitamins A,D,E and K into your bloodSaturated: more solid in room temperature,
most animal fats, associated with heart disease
Unsaturated: becomes liquid at room temp., healthier, found in vegetable fats
9 calories/gram. 60-80 grams per day
Vitamins
They help the body with digestion, absorption and metabolism
Either water-soluble or fat-soluble13 vitamins, Vitamin D is produced in the
skin via sunlightMust eat a variety of foods to get all of your
vitamins
Minerals
Inorganic, must be digested
Ex: calcium, iron, fluoride, zinc, sodium
Best source is in the foods you eat
Nutritional Guidelines
Eat a varietyFresh is bestBalance food with exerciseKnow your body fat %, this is more important
than body weightTake time to measure out serving sizesChoose foods that are low in saturated fat
and cholesterolChoose plenty of grain products
Nutritional Guidelines
Control sugar and sodiumEat breakfastEat healthy snacks between mealsLunch and dinner should have a variety of
foods
Being a Smart Consumer
Read Labels!1.Check the serving size2.Check calories and calories from fat3.Look at ingredients4.Check the expiration date5.Educate yourself