Nutritional Science and the Scientific Method

<p>DRIs are intended to be met through a balanced diet. (C)</p> Signup and view all the answers

<p>Protein, fat, and carbohydrates (D)</p> Signup and view all the answers

<p>A study investigating the effects of a new weight loss supplement on a group of volunteers (A)</p> Signup and view all the answers

<p>Cross-sectional study (A)</p> Signup and view all the answers

<p>To maintain energy balance and good health (A)</p> Signup and view all the answers

<p>They are minimum requirements for nutrient intake. (B)</p> Signup and view all the answers

<p>To prevent nutrient toxicity (B)</p> Signup and view all the answers

<p>To provide a framework for systematic investigation and understanding (D)</p> Signup and view all the answers

<p>To reduce the influence of confounding factors on the outcome. (D)</p> Signup and view all the answers

<p>Cohort study (A)</p> Signup and view all the answers

<p>It is determined based on the nutritional needs of a specific individual. (D)</p> Signup and view all the answers

<p>To identify the amount that, when consumed daily, provides an increased risk of toxicity. (B)</p> Signup and view all the answers

<p>AMDR (Acceptable Macronutrient Distribution Ranges) (D)</p> Signup and view all the answers

<p>To assess the overall nutritional status of a population. (A)</p> Signup and view all the answers

<p>The recommendations are minimum requirements for all individuals. (C)</p> Signup and view all the answers

<p>Epidemiological studies are always observational, while experimental studies involve manipulating variables. (A)</p> Signup and view all the answers

<p>Tolerable Upper Intake Level (UL) (A)</p> Signup and view all the answers

<p>Human intervention study (C)</p> Signup and view all the answers

<p>Fiber (B)</p> Signup and view all the answers

<p>To minimize the potential for confounding factors to influence the results. (C)</p> Signup and view all the answers

<p>To estimate the average daily intake of a nutrient that meets the needs of 50% of the population. (D)</p> Signup and view all the answers

<p>Collecting data to support a preconceived conclusion (A)</p> Signup and view all the answers

<p>Blood pressure (B)</p> Signup and view all the answers

<p>To track a group of individuals over time to investigate the relationship between dietary factors and health outcomes. (D)</p> Signup and view all the answers

<p>To determine the maximum intake level that is considered safe for most healthy individuals. (A)</p> Signup and view all the answers

<p>Daily Value (DV) (C)</p> Signup and view all the answers

A systematic process for researching and testing hypotheses.

A testable prediction based on observations that can be explored through experiments.

Research studying the incidence and distribution of diseases in populations.

Recommended Dietary Allowances; daily nutrient intake sufficient for 98% of healthy people.

Adequate Intakes; average nutrient intake that seems sufficient without enough evidence for the RDA.

Tolerable Upper Intake Levels; maximum daily intake of a nutrient considered safe for most people.

Estimated Energy Requirements; average intake needed to maintain energy balance and health.

Acceptable Macronutrient Distribution Ranges; percentages for macronutrients to reduce disease risk.

Comprehensive analysis of an individual’s nutrition status to detect malnutrition.

Physical body measurements like height and weight used in nutrition assessment.

The first step in the scientific method focusing on identifying a problem or asking a question.

The phase in the scientific method where a study is designed and conducted to test a hypothesis.

Summarizing and analyzing data to draw conclusions from the experiment.

A type of epidemiological study that analyzes data from a specific group over time.

An experimental study involving clinical trials with human participants.

Guidelines that suggest average daily intakes for nutrients based on population health.

Data regarding a person’s past health status or lifestyle used in nutrition assessments.

Population nutrition assessments carried out to gather data on dietary habits and health indicators.

Decisions made based on experiment results regarding the hypothesis.

Different approaches to studying health impact and disease distribution.

Research analyzing food consumption and health at a single point in time.

Comparative analysis where individuals are matched to find differences.

Standards for nutrient recommendations based on population health needs.

RDA meets 98% needs, while AI is based on observed intake levels.

Maximum safe daily nutrient intake to prevent toxicity in healthy individuals.

Comprehensive assessment of an individual's dietary health.

A well-substantiated explanation formed after hypothesis testing and supported by evidence.

Guidelines used to make dietary recommendations based on population needs.

Adequate Intakes; nutrient amounts determined by observed intakes, without enough evidence for RDA.

Maximum amount of a nutrient that is safe to consume daily, preventing toxicity.

Establishes average energy intake needed to maintain healthy weight and activity levels.

Percentage ranges for macronutrients to ensure adequate intake while reducing disease risks.

A comprehensive evaluation of a person's dietary health, detecting malnutrition or overnutrition.