Basic Concepts in Nutrition
What is the definition of nutrition?
The science that studies how food nourishes our body and influences our health.
Which macronutrient is the body's preferred way of storing energy?
Fats / Lipids
2000
Why is the metric system considered easier for scientific calculations compared to the U.S. customary system?
The metric system is based on powers of 10, making it easier to convert between units using simple multiplication or division.
What is the primary purpose of peer review in scientific research?
To ensure the study's accuracy, credibility, and quality by having experts in the field evaluate it before publication.
What are nutrients?
Substances in food that provide energy and structure to the body and help regulate body processes.
What is the role of protein in the body?
Protein helps build and repair tissues, make enzymes, hormones, and other body chemicals.
What is the Acceptable Macronutrient Distribution Range for Protein (AMDR)?
10 to 35% of calories
How many pounds are in 1 kilogram?
2.2
What is an impact factor in relation to academic journals?
It is a metric that reflects the average number of citations to recent articles published in a journal, indicating its influence in the academic community.
What are the six classes of nutrients?
Carbohydrates, fats, proteins, vitamins, minerals, and water.
What is a common source of dietary fats?
Dairy, Oils, butter, avocados, nuts, and fatty meats.
What is the Acceptable Macronutrient Distribution Range for Carbohydrates (AMDR)?
45% to 65% of calories
What does the prefix milli- mean?
0.001 (one-thousandth)
What is one way to identify an unreliable source of nutrition information?
The source lacks citations to scientific studies, is not peer-reviewed, or is published by individuals without formal expertise in the field.
What is malnutrition?
A condition resulting from an imbalance between nutrient intake and the body’s nutrient needs.
How many calories does 1 gram of carbohydrate provide?
4 calories.
What percent of the population would have it's dietary needs met by consuming the Recommended Dietary Allowance (RDA)?
97-98%
What does the prefix kilo mean?
1,000 times the base unit
Why is it important to consider the sample size in nutrition studies?
A larger sample size generally increases the reliability of the study’s results, making the findings more generalizable to the population.
What is the primary function of carbohydrates in the body?
To provide energy
How many calories does 1 gram of fat provide?
9 calories
How much of your "My Plate" should be filled by fruits?
Approximately 25%
When we see a capital "C" Calorie, how many lowercase "c" calories does this represent?
1000
Why might a journal with a high impact factor still publish studies that are not relevant to all fields of nutrition?
Impact factor measures overall citations but does not necessarily reflect the relevance of individual studies to specific topics or the quality of all studies published.