Meal Timing, Genetics and Weight Loss

ConditionObesity
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorUniversidad de Murcia

About this trial

Meal times differ from culture to culture. These differences may influence energy regulation and, consequently, body weight. Current studies support the notion that not only "what" but also "when" the investigators eat may have a significant role in obesity treatment. Recently, it has been shown that eating the main meal of the day, lunch in Spain, late in the day is predictive of difficulty in weight loss and decreased insulin sensitivity. This project aims to study in a Mediterranean population the potential influence of genetics and food timing on obesity, metabolic syndrome and weight loss.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Body Mass Index: >25 kg/m2

Age: >18 years of age

Caucasian

Disqualifiers

Receiving treatment with thermogenic, lipogenic, or contraceptive drugs

Diabetes mellitus, chronic renal failure, hepatic diseases, or cancer diagnosis

bulimia diagnosis, prone to binge eating

undergoing treatment with anxiolytic or antidepressant drugs

Trial population

All participants are voluntarily attending five weight loss clinics in Spain for dietetic and behavioral treatment based upon the principles of a Mediterranean diet . All participants are from the Spanish city of Murcia, located on the Southeast coast of the Mediterranean Sea.

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

Total weight loss

Body weight will be measured in barefoot wearing light clothes, with a digital scale to the nearest 0.1 kg, at the same time each day.

Time frame
weekly, during the 28 weeks of treatment
2

Long term weight loss maintenance

Body weight will be measured in barefoot wearing light clothes, with a digital scale to the nearest 0.1 kg.

Time frame
once at least one year after ending the treatment

Secondary outcomes

1

Food timing

Timing of breakfast, lunch and dinner

Time frame
at baseline
2

Sleep timing

Habitual sleep timing is estimated using a self-reported questionnaire.

Time frame
at baseline
3

Siesta timing questionnaire

Habitual siesta timing is estimated using a self-reported questionnaire.

Time frame
at baseline
4

Individual chronotype questionnaire

With the Morning and Eveningness Questionnaire (MEQ)

Time frame
at baseline

Other outcomes

Sponsors and contacts

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