Mid Term #1 Flashcards
What are the Leading Causes of Death in the United States RELATED to food intake?
- Heart Disease
- Cancer
- Stroke
- Diabetes
- Alzheimer’s Disease
- Kidney Disease
In nutrition, the word essential means?
A nutrient that can be obtained from a diet.
What are the three energy-yielding foods?
- Protein
- Carbs
- Fat
In the later part of her first year of college, Lisa is doing well, losing some of the weight she put on at the beginning of the school year. Her highest weight was 160 pounds and she now weighs 152 pounds. How many kilograms does Lisa now weigh?
69 kilograms
(A kilogram (kg) is equivalent to 2.2 pounds. If she weighs 152 pounds, divide this by 2.2 to find out that she weighs 69 kilograms.)
Lisa is trying to choose more low-fat foods in order to reduce her risk for cardiovascular disease. One low-fat cookie that she sees advertised in the grocery store has 22 grams of carbohydrate, 2 grams of protein, and 1 gram of fat per cookie. How many kilocalories are in one of these low-fat cookies?
105 kcal per cookie
(Carbohydrate has 4 kcal/g, protein has 4 kcal/g, and fat has 9 kcal/g. For this cookie:
22 g carbohydrate × 4 kcal/g = 88 kcal from carbohydrate 2 g of protein × 4 kcal/g = 8 kcal from protein 1 g of fat × 9 kcal/g = 9 kcal from fat Total kcal per cookie = 105 kcal per cookie)
Bob was recently diagnosed with type 2 diabetes. His dietitian recommended that Bob follow a 1,800-kcal meal plan for weight loss. She said he should also follow the Food and Nutrition Board (FNB) recommendation of getting 45% to 65% of these calories from carbohydrates. This is equivalent to ______ grams of carbohydrates per day.
203 to 293
Since beginning college, Lisa has put on about thirteen pounds. She is learning in her health science class that excess calories contribute to weight gain. One recommendation her instructor made for weight loss is to choose foods that have a low percentage of total calories coming from fat. If a 1/2-cup serving of her favorite ice cream has 310 kcal and 20 grams of fat, what percentage of total calories in the ice cream come from fat?
58% of calories in this food are from fat.
Half of the subjects in a study are given a drink with extra whey protein and the other half are given a drink without whey protein and both groups’ muscle strength is monitored. The drink without the whey protein is called a(n)
Placebo
What are the three roles of nutrients?
- Energy
- Growth and maintenance
- Regulating body processes
How many kcals does carbs have?
4
How many kcals does protein have?
4
How many kcal does fat have?
9
How many kcal does alcohol have?
7
What is a placebo in an experiment?
Inactive medicine is given to those not getting the treatment in an experiment.
What is a control group in an experiment?
Participants in an experiment not given the treatment are often given a placebo.
What is blinding in an experiment? Single? Double?
- Blinding: subjects don’t know the treatment they’re getting so not to be influenced.
- Single-blind: just subjects don’t know.
- Double-blind: Participants don’t know until after the completion.
What is a correlation in an experiment?
Simultaneous change of two factors
What are some study limitations?
- Muddy results
- Sample size
- Lack of control group,
- Too many variables
- Researcher bias
What is anecdotal evidence in an experiment?
Unscientific info based on personal accounts, can lead to future research
What is a meta-analysis in an experiment?
Examining data from several independent studies on the same topic to find a dependent variable.
What is a randomized controlled trial?
Experiment with researchers manipulating something and comparing the group given the treatment to the group given no treatment or another intervention.
What is a cohort study?
Groups of people followed overtime to monitor the development of a disease and exposure to risk factors.
What is a case-control study?
- Subjects with a disease/condition compared to similar subjects without a disease/condition
- Helpful for studying rare diseases.
What is a cross-sectional study (observational)?
- An observational study (researchers not manipulating) that looks at data from a group at a certain point in time
- Often uses questionnaires or surveys
- Can include calculations
- Determines prevalence (#of people at a time)
How many cm is in an inch?
1 inch = 2.54 cm
How many teaspoons are in a tablespoon?
1 tablespoon = 3 teaspoons
How many fl oz and tablespoons are in a cup?
1 cup = 8 fl oz or 16 tablespoons
How many cups are in a quart?
1 quart = 4 cups
How many milliliters are in a liter?
1 liter = 1000 mL
How many cups and quarts are in a gallon?
1 gallon = 16 cups or 4 quarts
How many milligrams are in a gram?
1 gram = 1,000 milligrams (mg)
How many micrograms are in a milligram?
1 mg = 1,000 micrograms (mcg orμg)
How many ounces are in a pound?
1 pound (lb) = 16 oz
How many pounds are in a kilogram?
1 kg = 2.2 lb
Which of the following is true about the dietary patterns to promote optimal nutritional status?
Choose a variety of options from each food group because no single food meets all human nutrient needs.
Examples of high nutrient foods:
- Fat-free milk
- Oranges
- Black beans
Examples of low nutrient foods:
- Cola
- Cookies
- Maple syrup
Which of the following is a purpose or possible benefit of the Dietary Guidelines for Americans?
To decrease the incidence of chronic diseases.
Which of the following groups in the USDA Eating Pattern (MyPlate) is a rich source of protein?
Dairy
Which MyPlate food groups are most likely to provide fiber and potassium?
Fruits and vegetables
Which of the following food lists would be recommended by the USDA Eating Pattern (MyPlate)?
Soybean oil, mayonnaise, olives, avocado
True or false: Dietary supplements such as vitamin D and calcium can replace a healthy diet if someone finds it difficult to follow the Dietary Guidelines for Americans?
false
What fraction of the food plate are Fruits & Vegetables? + facts
Fruits and vegetables cover one-half of the plate. These foods are dense sources of nutrients and health-promoting phytochemicals, despite their low calorie contents.
What fraction is Grains apart of the food plate? +facts
Grains occupy slightly more than one-quarter of the plate. The message to make half your grains whole is stressed throughout accompanying consumer education materials.
What fraction does Protein occupy of the food plate? +facts
Protein foods occupy slightly less than one-quarter of the plate. Specifically, the Dietary Guidelines recommend leaner sources of protein and including plant proteins more often. To obtain healthy fats, the Dietary Guidelines recommend inclusion of fish twice a week.
How many cups of Dairy should we consume each day? + facts
A cup of dairy appears next to the plate. Depending on personalized calorie recommendations, consumers should have 2 to 3 cups per day of low-fat or fat-free dairy products or other rich sources of calcium.
What is Estimated Energy Requirement (EER)?
An estimate of daily calorie needs based on the following:
- height
- weight
- sex
- age
What is Recommended Dietary Allowance (RDA)?
The recommended amount of nutrient intake that is sufficient to meet the needs of 97% to 98% of the individuals in a specific sex and life-stage group
What is Adequate Intake (AI)?
The recommended intake of a nutrient that is based on estimates of intakes that appear to maintain health for individuals in a specific sex and life-stage group
What is Tolerable Upper Intake Level (UL)?
The maximum chronic daily intake level of a nutrient that is unlikely to cause adverse health effects for individuals in a specific sex and life-stage group
Equations that calculate your Estimated Energy Requirement (EER; the amount of kcal you need to consume each day to maintain your current body weight) include several factors. From the following options, click to select five factors that are used in the EER equation.
- Age
- Activity level
- Weight
- Sex
- Height
How do manufacturers determine how ingredients are listed on their products?
Descending order by weight
A food item is considered high in a nutrient if it provides at least ______ % of the Daily Value for that nutrient.
20
What is considered a good source?
Provides at least 10%-19% of daily value of a particular nutrient.
What are portion sizes?
-Pay attention to the amount of food or beverage consumed at one eating occasion
-Pay attention to the label
What is nutrient density?
- Measure of nutritional quality
- Nutrient-dense foods have little or no added sugar, solid fats, or refined starch & sodium
Examples of foods to limit?
- Soda
- Butter
- Frosted shredded wheat
- Canned beans
What are examples of higher nutrient density?
- Fresh or frozen fruits/veggies
- Skinless chicken breast, 90% lean beef
-Beans - Low-fat dairy
- Tortillas, rice, pasta
- Peanut butter
- Oils
What are examples of lower nutrient-density foods?
- Canned fruits in sugar
- Hot dogs, sausage, hamburger
- Baked beans
- Creamy, cheesy casseroles
- Biscuits
- Added sugars (honey, syrup, jam, etc.)
- Sour cream, shortening, butter, cream cheese
What are refined grains?
Grain milled to remove parts of the grain for improved taste and shelf-life, loses nutrients.
What are enriched grains?
Nutrients lost in the milling process are added back
What are fortified grains?
Adding nutrients to a food that weren’t originally present
Are refined grains nutrient dense?
yes (ex. white rice, pasta)
What are considered fruits?
- Any fruits
- 100% fruit juice
- Dried fruit
What are considered vegetables?
Any vegetables including dark green, red and orange, beans/peas/lentils*, starchy, or other vegetables
What are considered grains?
Rice, bread, tortillas, cereal, pasta, oatmeal
What are considered proteins?
- Meat, poultry, fish, eggs
- Beans/peas/lentils*
- Nuts/nut butters, seeds
- Soy products
What is considered dairy?
Cheese, yogurt, milk, cottage cheese
Soy, almond, or rice milk IF fortified with Calcium
*Cream cheese, sour cream, shortening, and butter are NOT in the dairy group, but are solid fats/foods to limit
What is considered oil?
- Vegetable oils (soybean, canola, corn, olive, etc.)
- Fish, avocado, olives, nuts
- Mayo, oil-based salad dressing, tub margarine
What nutrients do grains have?
B vits like thiamin, iron, fiber*
What nutrients do fruits & vegetables have?
Vits A and C, folate, potassium, fiber
What nutrients do proteins have?
iron, zinc, B12 (animal products), protein
What nutrients do dairy have?
calcium, Vits D and B12, protein
Fruit equivalents:
https://www.myplate.gov/eat-healthy/fruits
Vegetable equivalents:
https://www.myplate.gov/eat-healthy/vegetables
Grain equivalents:
https://www.myplate.gov/eat-healthy/grains
Protein equivalents:
https://www.myplate.gov/eat-healthy/protein-foods
Dairy equivalents:
https://www.myplate.gov/eat-healthy/dairy
What are listed in ounces?
- Grains
- Protein
What are listed in cups?
-Fruits
-Vegetables
-Dairy
What does AMDR stand for?
Distribution of macros
What does it mean to have no ul?
There isnt sufficient data.
What are some organs that food does not pass through?
Liver
Gallbladder
Pancreas
What is digestion from start to end? (Part #1)
- Mouth –> Chewing (starts to digest carbs)
- Esophagus –> muscles push down food
- Stomach –> Enzymes start to break down protein
What is the digestion from start to end? part #2
- Small Intestine: a primary site of digestion, and all macronutrients are digested/absorbed here.
Accessory organs:
- Liver: produces bile to help breakdown fat and stores excess carbs as glycogen
- Gall bladder: stores bile
- Pancreas: breaks down carbs, proteins, and fat in the small intestine and produces insulin/glucagon
What is bile?
- Breaks down fat
- Produced by the liver
- Stored in the gallbladder
What does protein turn into after digestion?
Amino acids
What do carbs turn into after digestion?
Simple sugars
What three things do lipids turn into after digestion?
- Fatty acids
- Glycerol
- Cholesterol
What are stored carbs called?
- Glycogen
- Limited space
Are proteins stored?
no
How much fat can you store?
Unlimited amount
What lives in your big intestine?
A community of bacteria.
What is celiac disease?
- Autoimmune response to gluten
- Damages the small intestine villi
- It affects the ability to absorb nutrients
- Cause Nausea, vomiting, diarrhea, skin rash, systemic
What is the treatment for Celiac disease?
- No grains derived from wheat, rye, barley, oats
The organelles that are known as the power plants or the powerhouses of the cell are the
mitochondria.
Where is bile produced?
Liver
Where is bile stored?
Gallbladder
Where are glucagon and insulin produced?
Pancreas
Where does bicarbonate move from where?
Stomach –> Small intestine
Where are carbs stored?
- Muscles
- Liver
Where is fat stored?
Tissues
Hydrochloric acid is secreted in the what?
Stomach
Most nutrient absorption occurs in the what?
Small intestine
Which organ secretes enzymes that break down all three energy-yielding nutrients?
Pancreas
True or false: Glucose, protein, glycerol, and long-chain fatty acids are absorbed from the small intestine directly into the bloodstream.
False
All absorbed nutrients eventually travel to the what?
Liver
Which statement is accurate about chemical digestion?
Stomach acid and enzymes from the small intestine are used to digest protein.
Can fiber be absorbed?
No
Some foods contain probiotics; which are what?
Living microorganisms that provide health benefits for the host.
For a person with celiac disease, exposure to dietary gluten results in damage to the what?
Small Intestine
Sheila has celiac disease. She heard that the NDFS Cafe has some gluten-free options. Which of the following menu items can Sheila eat?
(Note: Assume that all ingredients were stored/prepared cleanly and not mixed.)
Roasted Chicken and Vegetable Kabob on Steamed Brown Rice
What are the three disaccharides?
- Maltose
- Sucrose
- Lactose
What are the three monosaccharides?
- Glucose
- Fructose
- Galactose
What are the three polysaccharides?
- Starch
- Fibers
- Glycogen
Where is starch found?
plants
Where is glycogen found?
humans
What is fiber?
Polysaccharide
What are the benefits of fiber?
- Improved GI health: decreases constipation, hemorrhoids, diverticulitis
- Lowers cholesterol and risk of heart disease and cancer
- Better weight management and blood glucose control
What are problems with too much fiber?
- Gas
- Diarrhea
- Bloating
- It can bind to some minerals such as iron and calcium, and block them from being absorbed
Is fiber digested?
No
Where are galactose and fructose converted into glucose?
Liver
What does glucose do?
Provide energy
What is ketosis?
When the body is out of carbs, it converts fat into ketone bodies for energy.
What are excesses carbs converted to?
In the liver, they are converted to glycogen and fat.
What is lactose intolerance?
Not enough enzymes to digest milk sugar.
What can you do to solve the lactose problem?
Deal with it or treat it.
What is insulin?
It gets glucose into cells to decrease blood sugar.
What is glycogen?
When broken down, it releases glucose into the bloodstream to increase blood sugar.
What are some signs of diabetes?
- Always thirsty
- Always hungry
- Always urinating
What are the aspects/effects of type 1 diabetes?
- No insulin produced!
Cause:
- Genetics
- A person’s immune system attacks insulin-producing pancreas cells
Treatment:
- injections
What are the aspects/treatments of type 2 diabetes?
- Insulin resistance (cells no longer respond to insulin)
Cause:
- Obesity
- Genetics
- Age
Treatment:
- Weight loss
- Healthy diet
- Oral medications
Which is recommended about carbohydrate intake?
Consume 45-65% of your total calories from carbohydrate.
Examples of whole grains:
- Plain spaghetti
- 100% whole wheat bread
- Brown rice
Which of the following would be the best way for a college student to increase his or her intake of dietary fiber?
When preparing a recipe for tacos, replace some of the beef with black beans.
Excessive sugar intake is related to the development of dental caries because…
Oral bacteria produce acids that dissolve tooth enamel when they metabolize sugars.
What are the three organs that digest carbs?
- Mouth
- Pancreas
- Small intestine
The liver is important in carbohydrate metabolism as it processes the monosaccharides galactose and fructose into glucose. What happens to this glucose once it is done being processed in the liver?
- If glucose is present in excess, some can be turned into fat.
- If glucose is present in excess, some can be stored as glycogen.
- The liver can release the glucose directly into the bloodstream for transport to organs.
When too little carbohydrate is consumed in a person’s diet, ______ are used to make glucose.
Amino acids
When too little dietary carbohydrate is available to meet energy needs, ______ arise as byproducts of partial fat metabolism.
ketones
Dietary fiber is
Fermented by bacteria in the colon to form gas and fatty acids.
When is glucagon released?
When blood sugar is low.
When is epinephrine released?
When the body is stressed.
When is insulin released?
When blood sugar is to high.
Sophia’s parents are obese and have type 2 diabetes. What should they do, to improve blood sugar control?
Balance carbohydrate intake with medications and exercise.
What type of carbohydrate is likely causing the problems that Myeshia experiences after drinking milk?
lactose
What are some ways to help lactose intolerance?
- Pills
- Drink lactaid
- Eat hard cheeses
- Drink calcium-fortified soy milk
Sophia is not an early riser, and her first class isn’t until 10 a.m. Every day she grabs breakfast to go from Burger King: a sausage biscuit (2 oz sausage on a medium biscuit) and 12 oz 100% orange juice. Mid-afternoon she stops by the vending machines to get a snack: usually 2 oatmeal cookies and a 12 ounce soda pop. For dinner every day she has a box of macaroni and cheese, made according to the package directions. She adds a hot dog (2 oz) to make it more filling. Each night she has a snack of one hard-cooked egg and 3-4 slices of wheat bread toast and jam. She figures as long as she feels full, she’s probably getting all the nutrition she needs. After all, she doesn’t crave any particular foods.
Question: How many equivalents from the protein foods group did she eat?
5 oz
Here is a reminder of what Sophia eats to answer this question. Every day she grabs breakfast to go from Burger King: a sausage biscuit (2 oz sausage on a medium biscuit) and 12 oz 100% orange juice. Mid-afternoon she stops by the vending machines to get a snack: usually 2 oatmeal cookies and a 12 ounce soda pop. For dinner every day she has a box of macaroni and cheese, made according to the package directions. She adds a hot dog (2 oz) to make it more filling. Each night she has a snack of one hard-cooked egg and 3-4 slices of wheat bread toast and jam.
How many equivalents from the fruit group did Sophia eat?
1 1/2 cups
Because Sophia doesn’t drink milk or eat ice cream, she makes a point of taking 4 calcium-&-vitamin D tablets each day, since she wants to be sure she is getting enough. Each tablet contains 650 mg calcium and 50 µg (micrograms) of vitamin D.
How appropriate is the calcium-vitamin D supplement for Sophia? (The DRI table will be included in the exam.)
Excessive
Which two USDA food groups are most likely to supply iron?
protein & grain
On a food label, ingredients are listed in descending order by what measure?
weight
Sophia is mildly curious about the whole process of digestion. Which is (are) accurate about where chemical digestion occurs?
Protein: stomach & small intestine
Which of the following lists contains all monosaccharides?
Fructose, glucose, and galactose
Which is NOT a likely complication of uncontrolled blood sugar for Sophia’s parents?
Anemia
Read the abstract then answer the question:
Beyond Ramen: Investigating Methods to Improve Food Agency among College Students.
Pope L, Alpaugh M, Trubek A, Skelly J, Harvey J. Nutrients. 2021;13(5):1674.
Many college students struggle to cook frequently, which has implications for their diet quality and health. Students’ ability to plan, procure, and prepare food (food agency) may be an important target for shifting the college student diet away from instant and inexpensive staples like packaged ramen. The randomized intervention study included two sequential cooking interventions: (1) six weeks of cooking classes based in food agency pedagogy held once per week, and (2) six weekly home delivered meal kits (3 meals per kit) to improve food agency, diet quality, and at home cooking frequency of college students. Based on availability and subsequent randomization, participants were assigned to one of four conditions that included active cooking classes, meal kit provision, or no intervention. Participants who took part in the cooking intervention had significant improvement in food agency immediately following the intervention period. Participants who did not participate in cooking classes and only received meal kits experienced significant, though less pronounced, improvement in food agency scores following the meal kit provision. Neither intervention improved diet quality or routinely improved cooking frequency. Active cooking classes may improve food agency of college students, though further research is needed to determine how this may translate into improved diet quality and increased cooking frequency.
Question: What kind of study was this?
Randomized controlled trial
