Genetic Information and Dietary Intake Behaviour

Status

Completed

Phases

Early Phase 1

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01353014

Enrollment

138

Registered

2011-05-12

Start date

2011-05-31

Completion date

2012-09-30

Last updated

2014-07-01

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

Conditions

Healthy

Keywords

Nutrigenomics, Diet, Nutrition

Brief summary

This study's primary objective is to determine if providing individuals with personal genetic information impacts dietary intake behaviour. Specifically, the investigators will be examining whether providing dietary advice based on genes that affect the metabolism of or sensitivity to caffeine, vitamin C, sugar and sodium will impact the intake of these dietary components. The study hypothesis is that providing dietary advice based on genetics will impact dietary behaviour to a greater extent than general dietary recommendations.

Interventions

OTHERDietary advice with genetic information

This group will receive dietary advice for caffeine, vitamin C, sugar and sodium based on genes that affect the metabolism of or sensitivity to caffeine, vitamin C, sugar and sodium.

OTHERGeneral dietary recommendations

This group will receive general dietary recommendations from recognized health organizations for caffeine, vitamin C, sugar and sodium, with no genetic information.

Study design

Allocation

RANDOMIZED

Intervention model

SINGLE_GROUP

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

20 Years to 35 Years

Healthy volunteers

Yes

Inclusion criteria

* 20-35 year old participants from the Toronto Nutrigenomics and Health Study

Exclusion criteria

* pregnancy or nursing * vitamin C supplement users * caffeine intake \< 100 mg/day * total sugars intake \< 10% energy * sodium intake \< 1500 mg/day

Design outcomes

Primary

Measure	Time frame	Description
Change from Baseline in Dietary Intake at 3 months	3 months	We will assess dietary intakes of caffeine (mg), vitamin C (mg), sugar (g and % energy) and sodium (mg) using Food Frequency Questionnaires (FFQ). An FFQ will be administered at baseline to determine dietary habits before dietary advice is given to either group (control or intervention). A second FFQ will be administered 3 months after the dietary advice is given, to examine if any changes were made to dietary intake in the short-term.
Change from Baseline in Dietary Intake at 12 months	12 months	A third FFQ will be administered 12 months after the dietary advice is given, to examine if any long-term dietary changes were made in intakes of caffeine (mg), vitamin C (mg), sugar (g and % energy) and sodium (mg).

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026