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derived from plant or animal sources. provides energy and nutrients. all humans have a right to an adequate supply of nutritious food.
chemical substances obtained from foods and used by the body for growth, maintenence, and repair of tissue, energy, and desease pervention
food is a potential weapon of bioterrorism. toxic substances could be introduced into he food/water supply
nutrients of food provides relative to the energy it provides. more nutients & fewer kcals= higher nutrient density
nutrient dense food
foods with higher quantitiy of nutrients(nutrient density) relative to the energy(kcals) provided
empty calorie (kcal) foods
popular term used to denote foods that contribute energy but lack protein, vitamins, and minerals
Build a healthy base
let the pyramid guide food choices, choose a variety of grains daily, especially whole grains, choose a variety of fruits/ vegetables daily, keep foods safe to eat
choose a diet low in saturated fat, an cholesterol and moderate in total fat, beverages/ food to mpderatre intake of sugars, choose and prpare foods with less salt, drink alcohol in moderation
a food guidance system that allows for and individualized approach to improving diet and lifestyle. the wedges represent recommended proportions of foods from each group to be consumed daily
eat more dark-green veggies like broccoli and spinach. eat more orange vegetables like carrots and sweet potatoes, and dry beans and peas
eat a variety, choose fresh, frozen, canned, or dried fruit, try not to drink fruit juces alot
meat and beans
choose low fat or lean meat and poultry, bake it, broil it, or grill it, vary your protein routein
# 1 job in the US, meat,dairy, and egg industries are the biggest players in the ag economy
EAR (eatimated average requirement)
nutrient amount that will maintain a specific biochemical or physiological function in half the people of a given age and gender group. 50% of people of an age/gender. not really used
RDA (recommended dietaryy allowance)
the average daily amount of nutrient considered adequate to meet the known nutrient needs of practically all healthy americans, living in america, and under the usual stress. 98% practically all healthy americans based on an average. most widely used
AI (adequate intake)
average intake of a nutrient that appears sufficient to maintain a specified criterion. rarely used
UL (tolerable Upper Level Intake level)
upper limit of a nutrient that appears safe for most healthy people
the capacity to do work- food is chemical energy converted to mechanical, electrical or heat energy
six classes of nutrients
carbs.- 4 kcal/g
water-humans need 11-15 cups of water a day from foods and fluids
total calories and calories from fat, total carbs, starch, sugar, and fiber, trans fat required on label
have to have a food with at least 5 g of fiber per serving. the subtract the number of carbs from fiber= net carbs
FDA's "A" list of health claims can be used on food labels, they provide and establish connection between a nutrient and a disease or health condition
x-rays, gamma rays, electrom beams are used to kill insects, bacteria, molds or other microorganisms. retain no radioactive particles, cam become contaminated once the package is open
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