UN Nutrition Flashcards
Nutrition def
Sum of all interactions between an organism and the food it consumes
Organic/inorganic/energy producing substances for body functioning
What are macronutrients
Energy providing nutrients:
Proteins, proteins and fats
What are micronutrients
Minerals and vitamins
Nurse’s role in nutrition
- Promote health by evaluating and facilitating adequate nutrition
- Having nutrition related knowledge
- Be based on reliable scientific evidence
- Assess patient’s nutritional habit and advise accordingly
Sugars (carbohydrates)
-Simplest of all carbs, water soluble, produce naturally by plants and animals
-monosaccharides or disaccharides
Starches (carbohydrates)
-insoluble, non sweet
-polysaccharides
-cereal, bread, flour, puddings
-Fibers
Fibres (starch)
-can’t be digested by humans
-insoluble (draws water into colon so prevents constipation) ex: wheat bran, fruit skin, broccoli, peas
-soluble (delays gastric emptying, slows entry of glucose in bloodstream -> helps prevent rapid postprandial increase in blood glucose, improving its control for DM individuals)
ex: beans, oats, lentils
Proteins
-organic substances of amino acids
-essential: can’t be manufactured, must be in diet
-nonessential: body manufactures
-complete proteins: meat, poultry, dairy, eggs
-partially complete: fish w small amount of methionine/milk prot casein w little arginine/beans
-helps with WOUND HEALING AND MUSCLE BUILDING
Lipids
-greasy insoluble (to water but not alcohol)
-fatty acids (carbon chains and hydrogen)
-sat fatty acids: butyric acids in butter
-unsaturated fatty acids
Vitamins
-can’t be manufactured by body
-fat soluble (body stores so not necessarily daily supply) : A.D,E,K
-water soluble: body can’t store so daily supply needed : B, C
What is basal metabolic rate
-calories burned at rest
-baseline nb if calories required to support involuntary functions at rest after 12h fast
-REE: Rest energy expenditure (similar to BMR w/o fast
Glycemic index approach
-how quickly blood glucose levels rise after food
-glycemic level: amount of glucose present in blood
Peak absorption level 30min after ingestion of food
Hypoglycaemia: low glycemic level
Hyperglycaemia: high glycemic level
Factors affecting nutrition
- Stage of development
- Sex
- Ethnicity/culture
- Beliefs about food
- Personal preference
- Religious beliefs
- Lifestyle
- Economics
- Meds and therapies
Alcohol consumption
-can lead to weight gain
-small amount directly converted to fat
-excess intake can lead to nutritional deficiencies
-fetal alcohol syndrome
Obesity epidemic
-exceptional increase in nb overweights/obese in Can for past 25y
-nurses help by health promotion
-BMI measurement: height and weight and BMI calculated