Dietary Guidelines, Portion Sizes, and Time Frame

How Dieticians Deliver Dietary Guidelines Using Portion Sizes and Time Frame

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03422939

Enrollment

441

Registered

2018-02-06

Start date

2013-11-24

Completion date

2014-01-02

Last updated

2018-02-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diet Habit, Food Habits

Keywords

FBDG, dietitians, portion sizes, time frame, visual references

Brief summary

During the last update of the French FBDG, a survey with a representative sample of dieticians investigated 1) how to communicate portion sizes and 2) the most relevant time frame when delivering dietary guidelines. The objective was to determine how to express portion sizes and time frame for Food Based Dietary Guidelines (FBDG) using the feedback of dietitians. Data were obtained from an internet-based survey of 441 French dieticians (collected from November 24, 2013 through January 2, 2014).

Detailed description

Background: Food Based Dietary Guidelines (FBDG) need to accessible and understandable to consumers. During the last update of the French FBDG, a survey with a representative sample of dieticians investigated 1) how to communicate portion sizes and 2) the most relevant time frame when delivering dietary guidelines. Objective: To determine how to express portion sizes and time frame for Food Based Dietary Guidelines (FBDG) using the feedback of dietitians. Design: Data were obtained from an internet-based survey of 441 French dieticians (collected from November 24, 2013 through January 2, 2014).

Interventions

OTHERthere was no intervention, only separate analyses

We only conducted separate analyses to see if responses differed according to level of experience.

Study design

Observational model

CASE_ONLY

Time perspective

OTHER

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

All members of the AFDN (French Association of Dietitians and Nutritionists) were invited to participate (n=2500 except the ones that had already participated in the pre-test n=10). Members of the AFDN who have completed the online questionnaire were retained for analysis (n= 441).

Exclusion criteria

Incomplete questionnaires Participants of the pre-test (n=10)

Design outcomes

Primary

Measure	Time frame	Description
Questionnaire to measure number of dietitians using different types of portion size and time frame	through study completion, an average of 1 month	Open-ended questions to measure how dietitians and patients describe portion sizes and time frame

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026