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Impact of a Short-Term Mediterranean-Style Diet on Health Indices

Exploring the Effects of a Short-term Mediterranean-style Dietary Intervention on Indices of Mood and Wellbeing in UK Adults

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07707414
Acronym
MEDWELL
Enrollment
22
Registered
2026-07-16
Start date
2019-03-01
Completion date
2019-08-20
Last updated
2026-07-16

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

Conditions

Healthy

Brief summary

Emerging evidence suggests protective properties of a Mediterranean diet (MD) in relation to prevention and management of mood disorders. However, there is paucity of dietary interventions investigating adherence to MD and effects on mood and wellbeing in individuals without a clinical diagnosis. The present study aimed to investigate the effects of adherence to a short-term MD on mood and wellbeing in healthy adults

Detailed description

This is a 1-week, cross-over, randomised, controlled study investigating the effects of Mediterranean style diet on perceived mood and overall wellbeing in healthy adults. The intervention consists following daily for 1 week a Mediterranean style eating pattern. Participants are following their habitual diet during the control week. This is an investigator-initiated, randomised, cross-over, controlled study.

Interventions

OTHERA mediterranean style diet

At baseline, an Educational Group Session (EGS) introduced participants to the Mediterranean Diet (MD) principles to support adherence. The interactive EGS covered MD typical foods to consume and avoid, cooking methods, and practical shopping guidance. Following the EGS, participants adopted a Mediterranean-style diet for a period of 7 days. Participants were encouraged to follow the MD guidelines (replacing typical western foods with MD foods) without restricting energy intake; examples were provided during the EGS and with take-home resource materials which detailed 'simple swaps' or alternative MD food items to replace western food items.

participants were instructed to follow their habitual diet (control) and eating practices for 7 days. without restricting energy intake.

Sponsors

University of Roehampton
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

Open label

Intervention model description

a randomised controlled-crossover design was employed, including a washout period to reduce carryover effects. Random allocation determined participants' diet order; counterbalanced to follow the MedDiet (MD) or their habitual diet (Control) for 7 days (week 1). This was followed by a washout (week 2), before participants completed the alternate condition (week 3). This is an investigator-initiated, randomised,controlled pilot study.

Eligibility

Sex/Gender
ALL
Age
35 Years to 64 Years
Healthy volunteers
Yes

Inclusion criteria

* Habitual diet of low Mediterranean Diet (MD)adherence i.e. individuals with MD scoring ≤7 (low adherence) were included. * Living in UK

Exclusion criteria

* pregnant or breastfeeding following a weight loss diet * diagnosed medical condition (diabetes, cardiovascular disease, cancer, food allergies) * have any further health conditions which may cause you to react adversely whilst changing your diet. * diagnosed with a neurological impairment or psychiatric disorder * Current smoker (last 12 months) * history of substance abuse * taking dietary supplements * already following a Mediterranean style diet

Design outcomes

Primary

MeasureTime frameDescription
MoodBaseline and 7 days (final day of each condition) espressed in questionnaire scoresChange in mood measured using the Bond-Lader Visual Analogue Scale (VAS). The scale ranges from 0 to 100, with higher scores indicating a more positive mood state (better outcome).

Secondary

MeasureTime frameDescription
WellbeingBaseline and 7 days (final day of each condition) espressed in questionnaire scoresChange in wellbeing measured using the Warwick-Edinburgh Mental Wellbeing Scale (WEMWBS). The WEMWBS total score ranges from 14 to 70, with higher scores indicating greater mental wellbeing (better outcome).

Countries

United Kingdom

Contacts

PRINCIPAL_INVESTIGATORFotini Tsofliou

University of Roehampton

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 17, 2026