Nutrition and health science

75 terms by rjd0002 

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Nutrition

The science that links food to health and disease. It includes the process by which food substance are ingested and digested.

Nutrient

a substance in food that provides energy or helps form body tissues and that is necessary for life and growth. Also, they act as building blocks provides energy, help repair and maintain body, supports growth

Essential Nutrients

Nutrients that our bodies can't make or can't make in sufficent amounts, must be obtained form food.

65

what age you will have eaten 70,000 meals and 50 tons

Malnutrition

andy condition caused by a deficiency or excess of nutrient intake. also obiciety is considered malnutrition

Cronic

Many nutrition related deseases are considere_____________

poor diet, cardiovascular disease, Hypertension, diabetes, cancer, obesity, osteoprosis others

list some causes of disease due to bad nutriton? (7)

Carbohydrats, Protiens, lipids, Vitamens, minerals, water

6 classes of essential nutrients?

what essential nutrient is inorganic, with no carbon?

Minearls

phytochemicals

Chemicals in plant-based foods that are not nutrients but that have effects on the body.

carotenids, revoratrol, flavanids, isoflabanes.

some exampales of phytochemicals?

SUN

where energy comes from

Calorie

measure of energy in nutrients

4 kcal/gm

calories in carbohdrates

4 kcal/gm

calories in protiens

9 kcal/gm

calories in fat

Notes

Review how to find amount of calories

7 kcal/gm

calories in alcohol

44-65%

amount of carbs recomended in a day

10-35%

amount of protien recomended in a day

20-35%

amount of fats recomended in a day

hunger

a physiological drive to eat

appetite

a psychological drive to eat

satiety

feeling of being full,, the state of being satisfactorily full and unable to take on more

The challange of choseing foods

what is this statment called: There are more fod to choose from than ever before, but ironicly it is harder to keep a diet cause of it.

Overnutriton

can be toxic to the body, and can cause few symptoms like obesity.

by physician and dietition

who measures nutritional state?

Anthropometric, biochemical, clinical, dietary, economics

ABCDE stands for what

Limitations

A long time may elapse between initial development of poor nutrient and first clinical evidence of a problem

4 food groups

in 1950 how many usad aproved food groups were there?

food pyramid

in 1992 there was a plan that illistrated the foods you need to eat, this was called

grains 1oz

how much grain does my pyramid tell you to eat

1oz

how much meat does my pyramid tell you to eat

milk 1 cup

how much milk should you drink in my pyramind

i cup

how many vegs should you eat wiht my pyramid

serving size, total calories, maufactores

Nutrition fact panel list a couple of things(3)

good source

a serving containing 10-19% of dv

excelent source

a serving conting 20% or more of dv

fat free

less thank .5 gramsof fat per serving

low fat

No more than 3gms per serving

reduced fat

25% less fat than food it is being compared to

ramdomized

most regeries type of study

double blind

placebo controlled study, in which the reciever dosen't know.

food philosophy

consume a varity of foods balancing by a moderate intake of each food.

adequacy

the dietary characteristic of providing all of the essential nutrients, fiber, and energy in amounts sufficient to maintain health and body weight

balance

where you pick and choose food in order to replinish your body wiht nutrients.

moderation

where you eat a low amount of foods to stay safe.

variety

eat lots of different foods in order to get all the nutrients of your body to function

salt =

= Clestoral

grain, fruit, veg, milk, meats and beans, oils

a good 6 group food balacnce consit of ?

cell

basic unit of life, self-contained.

cell membrane

thin, flexible barrier around a cell; regulates what enters and leaves the cell

cytoplasm

a jellylike fluid inside the cell in which the organelles are suspended

mitochondria

the organelles in which nutrients are converted to energy

low nutrient density

junk food or empty calories

energy density

caloric content of food per gram.foods whith higher water and fiber have a low______

Nutrient density

the amount of nutrients relative to the number of calories they provide

cell nucleus

a part of the cell containing DNA and RNA and responsible for growth and reproduction

endoplasm reticulme

smooth, rough, where protiens are made

golgi

apparatus organelle in eukaryotic cells with a sustem of flattened tubular membranes it sorts and packs proteins and sends them to where their suppose to go

lysosomes

An organelle containing digestive enzymes

peroxisomes

membranous sacs containing enzymes used to break down hydrogen peroxide

difussion

way nutrients get in and out of the cell

facilitated diffusion

no energy, the movement of molecules across a membrane with the help of protein molecules

active transport

The movement of materials through a cell membrane using cellular energy

red blood cells

what cells don't have a miticondria

arteries

blood vessels that carry blood away from the heart

veins

blood vessels that carry blood back to the heart

lymphatic system

the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the body

portal system

when blood flows through two consecutive capillary networks before returning to the heart such as in the hypothalamus-anterior pituitary, the kidneys, and in the liver, what is this called?

capillaries

pipes, tiny, thin-walled blood vessels that allow the exchange of gases and nutrients between the blood and the cells of the body

secretean

release bicarbonate from pancrease

esophageal sphincter

muscle at the upper or lower end of the esophagus that prevents backflow

peristalsis

involuntary waves of muscle contraction that keep food moving along in one direction through the digestive system

Cholecystokinin

hormone the small intestine secretes to stimulate release of pancreatic juice from pancreas and bile from gallbladder

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