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Disaccharides?
- Maltose - Glucose + Glucose
- Sucrose - Glucose + Fructose
- Lactose - Glucose + Galactose
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Startch
is a Polysaccharide - Long chains of glucose (How plants store energy)
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Glycogen
highly branched chains of glucose (How animals store fat)
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FIBER
- 1.) Soluble fiber - dissolves in water. Slows intestinal mobility and traps bile (Which is made of cholesterol) to lower cholesterol
- Food sources: Oats, Fruit, Barley
- 2.) Insoluble Fiber - not soluble in water, increases intestinal motility
- Food sources: Wheat, brown rice, vegetables, whole grains, seeds.
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Diabetes
- Body cannot maintain blood sugar
- High blood sugar damages vascular system leading to: blindness, heart disease, kidney disease, amputation etc.
- Symptoms: Polydipsia blurry vision
- Polyurea pain in feet and limbs
- Glucose in urine slow wound healing
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Types of Diabetes
- type 1 - jeuvinile onset or insulin dependant. Pancreas does NOT produce insulin, need an external source of insulin, usually a shot.
- type 2 - adult onset. non insulin dependent. Pancreas produces indulin however cells do not respond related to obesity as large fat cells are more resistant to insulin.
- Gastational - occurs only in pregnant women
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Calcium
- Most abundant mineral in the body.
- bones, teeth - living tissue - CA fluxes in and out.
- deficiency - stunted growth, bone loss
- toxicity - CA deposits in kidneys
- Sources: dairy boney fish leafy greens
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Phospheros
- 2nd most abundant
- combines with CA to form bones and teeth
- Aso: buffer dna/rna
- sources: dairy and protein
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Magnesium
- bones and teeth, protein building, fluid electrolyte balance, cell integrity, nerve and muscle contractions, including heart muscle
- deficiency: weakness, muscle twitching, bizarre movements, confusion.
- toxicity: rare. may occur in use of MG containing laxatives.
- sources: nuts legumes chocolate whole grains sea food.
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Sodium
- fluid/electrolye balance
- deficiency rare
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potarssium
- main ion inside cells
- heat beat.. deficiency occurs in dehydration. toxicity... not from food... but if injected its lethal.
- sources: fresh fruits and vegetables
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Chloride
- HCI in stomach
- fluid balance
- source - salt
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Sulfer
source - protein foods
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Iodine
regulated growth metabolism and development
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iron
necessary to make new cells
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zinc
woks with proteins and helps enzymes
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fluoride
- not necessary but beneficial
- usually in tap water
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Chromium
works with insulin to regulate and release energy from glucose
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Copper
helps from hemoglobin and collagen ability to handle o2. also assists in energy releasing reactions and gene regulation.
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Nutrients
- protein 4 calories/gm
- carbs 4 calories/gm
- fats 9 calories/gm
- water
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why do we chose food
- taste/smell
- comfort
- economy
- culture
- religion
- health
- advertising
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5 characteristics of a healthy diet
- 1.) adequacy
- 2.) Balance
- 3.) Calorie control
- 4.) Moderation
- 5.) Variety
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DRI
Dietary Reccomendation intake
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RDA
Recommended Daily allowance
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UL
- Tolerable upper intake level.
- highest level of nutrients to prevent toxicity.
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EAR
Estimated Average Requirements
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AMDR
- Acceptable, Macronutrient Distribution Range
- Sets an acceptable range for energy yielding nutrients.
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BMI
- < 18 - Underweight
- 18-25 - Normal weight
- 25-30 - Over weight
- > 30 - obese
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Digestion
- Mouth
- Espophagus
- Stomach
- Small intestine
- Large intesting
- Rectum
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