Journal Article

Vegetarian, pescatarian and flexitarian diets: sociodemographic determinants and association with cardiovascular risk factors in a Swiss urban population

de Mestral, Carlos, Reny, Jean-Luc, Wozniak, Hannah, Stringhini, Silvia, Guessous, Idris, Larpin, Christophe

2020

Overview

Prevalence and trends of different vegetarian diets remain unknown, with estimates varying depending on the source. Evidence suggests that vegetarian diets are associated with a more favourable cardiovascular risk profile. The present study aimed to assess the prevalence and trends of different types of vegetarian diets in a population-based representative sample, sociodemographic characteristics of participants following such diets and the association of these diets with cardiovascular risk factors. Using repeated cross-sectional population-based surveys conducted in Geneva, Switzerland, 10 797 individuals participated in the study between 2005 and 2017. Participants were classified as vegetarians, pescatarians, flexitarians or omnivores using an FFQ. Sociodemographic and cardiovascular risk factors were evaluated through questionnaires, anthropometric measurements and blood tests. Findings show prevalence of vegetarians increased from 0·5 to 1·2 %, pescatarians from 0·3 to 1·1 % and flexitarians remained stable at 15·6 % of the population over the study period. Compared with omnivores, vegetarians were more likely to be young (OR 2·38; 95 % CI 1·01, 5·6), have higher education (OR 1·59; 95 % CI 1·01, 2·49) and lower income (OR 1·83; 95 % CI 1·04, 3·21); pescatarians and flexitarians were more likely to be women (pescatarian: OR 1·81; 95 % CI 1·10, 3·00; vegetarian: OR 1·57; 95 % CI 1·41, 1·75) and flexitarians were also more likely to have a lower income (OR 1·31; 95 % CI 1·13, 1·53). Participants who adhered to any diet excluding/reducing meat intake had lower BMI, total cholesterol and hypertension compared with omnivores. The present study shows an increase in the prevalence of vegetarians over a 13-year period and suggests that the different vegetarian diets assessed are associated with a better cardiovascular risk profile.

• Publisher: Cambridge University Press
• Subject: Adolescent / Adult / Aged / Biomarkers / blood / Blood pressure / Cardiovascular diseases / Cardiovascular Diseases - epidemiology / Cardiovascular Diseases - etiology / Cholesterol / Cross-Sectional Studies / Dairy products / Diabetes / Diet / Diet Surveys / Diet, Vegetarian - methods / Diet, Vegetarian - statistics & numerical data / Dietary Surveys and Nutritional Epidemiology / Education / Eggs - analysis / Fasting / Female / flexitarian diet / Food intake / Gender differences / Glucose / Health risks / Heart Disease Risk Factors / Humans / Hypertension / Income / Male / Meat / Meat - analysis / meat consumption / Middle Aged / Nutrition research / Omnivores / Overweight / pesco-vegetarian diet / Population / Population studies / Poultry / Questionnaires / Risk analysis / Risk assessment / Risk factors / risk profile / Seafood - analysis / Sociodemographics / Switzerland / Switzerland - epidemiology / Trends / urban population / Urban Population - statistics & numerical data / Urban populations / Vegetarian diet / Vegetarianism / Women / Young Adult