chapter 5 Flashcards
proper nutrition can positively contribute to ____
strength, flexibility, and cardiorespiratory endurance
proteins
required for the growth, repair, and tissue maintenance
carbs and fat
production of energy
vitamins and minerals
regulation of body processes
carbohydrates
accounts for 55-60% of total caloric intake
sugars (lactose, sucrose)
should intake for <15% of caloric intake
starches
complex CHO, broken into glucose (rice, potatoes, bread)
fiber
25 grams a day
fats
most concentrated source of energy and should account for 25-30% of caloric intake
- serves to make food flavorful and contains fat soluble vitamins
- essential for normal growth and development
saturated fats
fatty acids
unsaturated
liquid at room temperature plant derivatives
regulated nutrients
vitamins serve as regulators in many body processes
fat soluble
vitamins A, D, E, K and found in fatty portion of foods and oils
water soluble
-vitamin C, B complex vitamins
-regulates metabolism but cannot be stored
antioxidants
- may prevent premature aging, cancers, heart disease, and other health problems
-vitamins A, C, E - found in a number of dark green, deep yellow, and orange fruits/vegetables
minerals
-more than 20 have essential roles
- many stored in liver/bones
iron
energy metabolism and o2 transportation
magnesium
energy supplying reactiON
Calcim
bone formation, clotting, muscle contraction
sodium and potassium
nerve conduction
water
-most essential nutrient and most abundant in body 60% of body weight
-essential for all chemical processes
-lack of water can lead to illness and death
-body has mechanisms to maintain homeostatic levels of hydrations (kidneys and solute accumulation)
electrolyte requirements
-help maintain levels of hydration
-can generally maintain through proper diet however additional salts may need to be added periodically
MyPlate
emphasizes healthy diet (vegetables, fruits, proteins, grains, dairy)
dietary supplements
activity increases need for energy not necessarily all vitamins, minerals, and nutrients
vitamin supplementation
-athletes believe large doses can lead to superior health and performance
-common megadose practices
mineral supplement
calcium and iron tend to be low diets may need to be modified
calcium supplement
-most abundant mineral in body
-young adult requires 100mg/day
-females tend not to get enough calcium in diet
iron supplement
-common in females
-results iron deficiency
caffeine
-central nervous system stimulant found in carbonated beverages
-increase alertness and decrease fatigue