FSN 210 Midterm Flashcards
Fetal Alcohol Syndrome (FAS)
Range of physical, behavioral & cognitive disorders caused by prenatal alcohol exposure.
Symptoms of FAS
Prenatal & postnatal growth retardation, Impairment of brain & central nervous system, Abnormalities of face, skull, cleft palate, heart, ear, genital, eyes & urinary defects
Amount of alcohol in a drink
Drink is ½ oz of pure ethanol, 12 oz beer (5%), 10 oz wine cooler, 5 oz wine(12%), 1 ½ oz liquor (80 proof whiskey, gin, brandy, rum, vodka) (40%)
Basal Metabolic Rate (BMR)
2/3 of energy expenditure. Supports basic processes of life. Measured when lying still after sleeping & 12-14 hour overnight fast.
Physical Activity
Most variable. Weight loss & weight gain. Duration, frequency & intensity influence energy expenditure.
Thermic Effect of Food (TEF)
10% of total energy intake & involves digestion & absorption.
Increase BMR
Exercise (increase muscle mass), Height (taller = higher BMR), Stress (physical) Growth, fever, premenstrual hormones, smoking ciggs, caffeine.
Decrease BMR
Aging, less PA, sleeping a lot, fasting (strict dieting)
Calculate BMI
wt lbs *703/(ht inches)2
BMI Levels
40 Extreme obese
Health risks of being overweight
Diabetes type 2, heat disease, CHD-coronary heart disease (higher flammatory, LDL ADL TG, Stroke + hypertension = high blood pressure , Injury to bones, sleep apnea, fatty liver, some cancers
Health risks of being underweight
Organ failure, malnourished (decreases immunity-sick) pregnancies – offsprings. Infertility, osteoporosis, medical stress.
Strategies for gaining weight
Fruit juice, healthy high fat foods (nuts, cheese, avocados) cook w/ olive oil, bigger portions, dried fruits
Fat stored
In adipose tissue
How is fat measured?
Skinfold measures, Hydrodensitometry, Bioelectrical impedance, Air displacement plethysmography, Dual energy X-ray absorptiometry
Body fat: Risks of diseases
Heart disease, Stroke, Diabetes, Hypertension, Gallstones, Some cancers
Causes of Obesity
Genetics, SES (socioeconomic status), stress, activity level, portion sizes (behavior), metabolic
Weight loss drugs
Orlistat –(Xenical, Alli) Causes gas, diarrhea, cramping, oily stools, reduced levels of vitamin E & B-carotene Qnexa – (Topomax & Phentermine) Dry mouth, constipation, memory loss, insomnia, birth defects
Bariatric surgery
BMI ≥ 40 or >35 with health conditions, < 1% death rate, 20-30% have surgical complications, Nutritional complications: Fe deficiency, Low B12 & folate levels, Decreased bone density
Fad diets
Claims, see quick results, before/after pics, celebrities, don’t have to make choices. Fad diets – Do they support weight loss & support good health over the long term? NO. What are some of the adverse effects of low CHO diets? Hungry, impair brain function need 130 g carbs/day, decreases energy, ketosis
Diagnostic criteria for AN
Refusal to maintain body weight (less than 85%), Intense fear of becoming fat, Disturbance in body image, Amennorhea in females – no period, Restricting type, Binge eating/purging type.
Weight loss strategies
Try diet, mini meals, fast food – modify, portion size, eat only @ table, drink water, exercise, nutrient-dense foods
Diagnostic criteria for BN
Binge eating – lack of control, Compensatory mechanism, Vomiting, laxatives, diuretics, excessive exercise, 2x/week for 3 months, Self-evaluation based on body shape & weight.
Diagnostic criteria for BED
Eat large amount of food in short time, Feel out of control, 2x/week for 6 months, No compensatory mechanism, Overeating causes marked, distressed, Any of 3 of these: Rapid eating, Uncomfortably full, Eat large amounts when not hungry, Eat alone because embarrassed of amounts, Disgusted, depressed, guilty about overeating
Treatment for AN
Team Approach, Psychotherapy – individual & family, In-patient facility or day treatment – dietitian RD, psychotherapist, MD, psychiatrist if meds needed, Medication if needed.
Treatment for BN
Psychotherapy, In- patient or day treatment may be needed, Sometimes antidepressants are needed, Change “all or nothing” attitude regarding food, Decrease episodes of binge & purge, Establish good, normal eating habits.
Treatment for BED
Keep food diary – amts, feelings before/after, portion sizes, designated meals times, address hidden emotions, deal w/real life issues, medication (antidepressants)
Female Athlete Triad
Disordered eating habits can develop: Desire to improve performance, Enhance aesthetic appeal of their performance, Meet unsuitable weight standards. In female athletes, prevalence of eating disorders is 15 - 62%, Athletes weigh more because of increased muscle mass, Nutrition misinformation, Pressure from coaches, peers & judges
How can we prevent eating disorders?
Indicate if photoshopped, healthy BMI for models, reveal secrets of ads, parents – positive role models, not putting kids on diets, nutrition programs in schools, deal w/real life issues, Diversity in body size/shape
Physical effects of AN
Damage to organs, dc immune system, amenorrhea, decrease fertility, decrease lean body mass, no fat stores, hair loss, white hairs on body to keep warm (Lanugo), insomnia, 10% death rate, loss of brain tissue, look older, osteoporosis, electrolyte imbalance
Physical effects of BN
Acid erosion to teeth, rupture esophagus, Esophagitisà Barret esophagusà esophageal cancer, damage to colon (laxatives), swelling of saliva glands, HTN, heart failure, electrolyte imbalance
Beriberi
Thiamin Deficiency
Pellagra
Niacin Deficiency
Pernicious Anemia
Vitamin B12 Deficiency
Megablastic Anemia
B12 and/or Folate Deficiency
Scurvy
Vitamin C Deficiency
Night blindness/Blindness
Vitamin A Deficiency
Who should take vitamin and mineral supplements?
Preg women, elderly, gastric bypass patients, vegans, deficiency
Toxic Dose of B6
Depression, fatigue, irritability & headaches, Nerve damage causing numbness & muscle weakness, inability to walk - can be permanent, Convulsions.
Toxic Dose of Niacin
Painful flush, hives & rash, Excessive sweating, Blurred vision, Liver damage, Impaired glucose tolerance, Used as a drug (1.5 – 3 g/day will lower cholesterol).
Toxic Dose of Vitamin A
Bone Defects: Weakened bones & contributes to osteoporosis & fractures, Birth Defects Vitamin A supplements are not recommended the 1st trimester of pregnancy. Toxicity symptoms: Liver abnormalities, Blurred vision, nausea, vomiting, vertigo, headaches & pressure in the skull.
Toxic Dose of Vitamin D
Elevated blood calcium, Calcification of soft tissues.
Toxic Dose of Vitamin C
Nausea, abdominal cramps, diarrhea, headache, fatigue & insomnia, Hot flashes & rashes, Interference with medical tests, Aggravation of gout symptoms, urinary tract infections & kidney stones
Precursor of Niacin
Tryptophan
Precursor of Vitamin A
Beta-Carotene
Functions of Vitamin D
Increases absorption of calcium, Stimulates retention of calcium by kidneys, Helps to maintain blood levels of calcium & phosphorus, Immune system, Brain & nervous system, Prevent cancer – breast cancer & others, Muscle strength & falls, Lowers BP, TG & MI (heart attack), Prevent & TRT(treatment) of MS (multiple sclerosis)?, May protect against TB & inflammation, macular degeneration.
Functions of Vitamin C
Antioxidant, Donates electrons to free radicals, Free radicals: Unstable & highly reactive molecules missing electrons, Protects tissues from oxidative stress, This helps prevent disease.
Functions of Vitamin E
Vitamin E as an Antioxidant: Stops the chain reaction of free radicals, Protection of: PUFA & vitamin A, Oxidation of LDL-cholesterol, Cell membranes.
Functions of Vitamin A
Helps maintain the cornea
Functions of Vitamin K
Synthesis of blood-clotting proteins, Synthesis of bone proteins that regulate blood calcium
Functions of Vitamin B12
Synthesis of new cells, Maintains nerve cells, Reforms folate coenzymes, Energy metabolism
Alcohol Absorption & Metabolism
Quickly absorbed in stomach. CHO decreases the absorption of alcohol. Alcohol dehydrogenase breaks down alcohol in the stomach. Who absorbs more alcohol? Men or women? Women, more body fat In small intestine it is rapidly absorbed
Alcohol Metabolism
Alcohol absorbed from stomach goes to bloodstream, remainder to SI
From small intestine, alcohol goes directly to bloodstream
Alcohol dehydrogenase breaks down alcohol to acetaldehyde
Liver metabolizes alcohol & get accumulation of fatty acids – “fatty liver”
Liver processes ½ oz/hour
If consume more than that, then alcohol travels to rest of body & back to liver
Food Source of Vitamin C
Citrus fruits
Bell peppers(red)
Fresh fruits/vegetables
Food Source of Thiamin
Whole-grain, fortified or enriched grain products
Moderate amounts in all foods
Pork – one of the highest foods w/ Thiamin
Food Source of Riboflavin
Milk products, including yogurt & cheese
Enriched & whole grains
Liver
Food Source of Vitamin B6
Found in many protein foods Meats, fish, poultry & liver Legumes & soy products Non-citrus fruits Fortified cereals
Food Source of Vitamin B12
Animal products Meat, fish, poultry & shellfish Milk, cheese & eggs Fortified cereals Easily destroyed by microwave cooking
Food Source of Folate
Foliage: Leafy green vegetables
Fortified grains
Legumes & seeds
Liver
Food Source of Vitamin A
Liver
Fortified milk, cheese, cream, butter, fortified margarine & eggs
Food Source of Vitamin D
Fortified milk, butter & margarine Fish Cereals Chocolate mixes Veal, beef, egg yolks, liver, fatty fish & their oils
Food Source of Vitamin E
Polyunsaturated plant oils such as margarine, salad dressings & shortenings Leafy green vegetables Wheat germ Whole grains Liver & egg yolks Nuts & seeds
Food Source of Vitamin K
Liver
Leafy green vegetables & cabbage-type vegetables
Green tea
Milk