Unit 2: Nutrition to Support Wellness (Cohort 1 Video)
Reading: Macronutrients
-Identify the differences between macronutrients and micronutrients
Macro nutrients: are carbs, lipids & proteins. Provides energy needed
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Unit 2: Nutrition to Support Wellness (Cohort 1 Video)
Reading: Macronutrients
-Identify the differences between macronutrients and micronutrients
Macro nutrients: are carbs, lipids & proteins. Provides energy needed for growth, thermoregulation,
physical activity, pregnancy/lactation. Needed in larger amts than micronutrients
Micro nutrients: vitamins/minerals in small amts for good health/development. Play various roles in
cell metabolism. Deficiencies cause widespread health probs.
-Differentiate the S/S for the following diseases:
Obesity: excess consumption. Increased risk for CAD, some cancers & type 2 diabetes. Puts stress on
knee/ankle joints. Is an energy imbalance, where energy intake exceeds energy expenditure.
Influenced by genetic/environmental factors.
Marasmus: general deficiency of macronutrients. Also called protein-calorie malnutrition.
Kwashiorkor: primarily attributed to deficiency of dietary protein. s/sx include fatigue, irritability,
lethargy, poor growth, apathy, edema, decreased muscle mass, large belly, diarrhea, dermatitis,
change in hair, infections. Can lead to coma/death.
Anorexia nervosa: restricted intake. Body weight @ or < 85% of normal. Intense fear of wt gain,
distorted perception of body wt. 3rd most common condition of adolescents. Common co-morbid
conditions: OCD, depression, anxiety, social phobia. Can lead to decreased micronutrient intake,
which leads to death.
Bulimia nervosa: binge eating f/b purging (vomiting or misuse of laxatives/diuretics). Can lead to
obesity.
Pellagra: Deficiency of Niacin (Vit B3). Characterized by “4 D’s of Pellagra:” dermatitis, diarrhea,
dementia & death.
Reading: Micronutrients
Identify diseases/illness related to specific vitamin deficiencies (vitamin A, vitamin C, vitamin D, iron,
iodine, etc.).
Vit C Deficiency (Scurvy): Early signs are bleeding gums/pinpoint hemorrhages under skin, rough
scaly skin, hardening of arteries or massive bleeding can happen & lead to death.
Vit D Deficiency (Rickets): bone formation impaired. Bow legged appearance
Vit A Deficiency: leads to blindness. Even mild deficiency causes diarrhea & URIs
Iron Deficiency (Anemia):
Iodine Deficiency: leads to physical/mental developmental delays.
Reading: Malnutrition
Identify the differences between kwashiorkor and marasmus
Kwashiorkor: Adequate calories, not enough protein. Often occurs in areas of famine, low food
supply, low education levels. Often tropical regions w/ diet high in starch/low in protein. Early RX has
+ results. Without RX, is fatal
Marasmus: means to “waste away.” Is acute form of malnutrition. Deficiency of BOTH calories AND
protein. Most severe form of childhood malnutrition. Body fat stores used for energy & then muscle
is broken down for body fuel. Person appears as skin/bones w/ lg eyes, bald head, aged/gaunt
appearance. Once severe muscle wasting occurs, death is imminent. Have below norm body temp.
Reading: Treating Malnutrition
Identify effects and treatments for malnutrition
Has adverse effects on physical/psychosocial wellbeing by predisposing to disease. Mostly treatable
by optimizing food intake & using oral nutritional supplements. Effects: poor health, increased
infections, increased hosp admits, longer recovery time, increased dependency, more MD visits,
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higher medicine costs, higher rate of admits to nsg home, decreased muscle strength, inactivity,
impaired temp regulation, electrolyte/fluid imbalance. Must screen for BMI < 18.5, recent
unintentional wt loss, no intake > 5 days. “Food first” approach, then oral nutritional supplements
(ONS)
Reading: Chapter 1: Applying Nutrition Science to Public Health ((PLEASE ACCESS THE CHAPTER
THROUGH THE UNIT 2 COURSE MATERIAL IF THE LINK DOES NOT WORK FOR YOU)
Briefly define HEI, NHANES, DGA, and the foods/products regulated by the FDA/USDA.
HEI: Healthy Eating Index. Uses a scoring system to evaluate a set of foods. Scores range from 0-100.
An ideal overall HEI score of 100 reflects that the set of foods aligns w/ key dietary
recommendations from the Dietary Guidelines for Americans. Scoring metric is composed of 12
subcomponents, 9 of which rec
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