Table 2.

Criteria for Inclusion and Exclusion in This Review

Inclusion Criteria	Exclusion Criteria
Intervention studies (both RCTs, non-randomized and non-controlled studies)	Cohort studies, case-control studies, cross-sectional studies, pilot studies and meta-analyses
Outcomes that included changes in body weight and/or BMI	Outcomes that excluded changes in body weight and/or BMI
The absence of hypocaloric restrictions in both study groups	The application of hypocaloric restrictions in both study groups
A plant-based (vegetarian or vegan) intervention	An intervention that included meat or merely one plant protein source (ie almonds or soy)
A standard diet that included meat and virtually resembled the participants’ usual diet	A standard diet that excluded meat and did not resemble the participants’ usual diet
Duration of intervention ≥ 4 weeks	Duration of intervention < 4 weeks
Full-text available	Full-text non-available
Language: Norwegian or English	Other language than Norwegian and English
Adults (≥ 18 years)	Children (< 18 years)

Abbreviations: RCT, randomized controlled trials; BMI, body mass index.