The association between lunch composition and obesity in Iranian adults. Issue 10 (28th May 2022)

• Record Type: Journal Article
• Authors: Akbarzade, Zahra; Djafarian, Kurosh; Saeidifard, Nasim Nasim; Aliakbari Majd, Shabnam; Garousi, Nazila; Samadi, Fatemeh; Jebraeili, Hanieh; Chamari, Maryam; Clark, Cain C. T.; Shab-Bidar, Sakineh
• Is Part Of: British journal of nutrition. Volume 127:Issue 10(2022)
• Page Start: 1517
• Page End: 1527
• Publication Date: 2022-05-28
• Subjects: Lunch pattern -- Obesity -- BMI -- Waist circumference -- Dietary patterns; Nutrition -- Periodicals; 572.4
• DOI: 10.1017/S0007114521002543
• Languages: English
• ISSNs: 0007-1145

Abstract

Abstract: We aimed to assess the dietary composition of lunch meal using a posteriori -derived dietary patterns and to determine the association of lunch composition with obesity in a sample of Iranian adults. This cross-sectional study was conducted on 850 men and women in Tehran (aged 20–59 years). Dietary intakes were assessed using three 24-h dietary recalls, and dietary patterns were identified via principal component factor analysis. For each identified pattern, scores were calculated for each participant and then classified into tertiles. Central obesity was defined WHO criteria. General obesity was defined as a BMI of more than 30 kg/m 2 . Three major dietary patterns were identified at lunch meal using twelve food groups: 'Bread, grains and fat', 'Western' and 'Potato and eggs'. After adjustment for potential confounders, participants at the top tertile of the 'Bread, grains and fat' dietary pattern had greater odds for a higher waist-to-hip ratio (WHR), compared with those in the lowest tertile (OR: 1·44, 95 % CI 1·01, 2·07). However, we found no association between 'Western' or 'potato and eggs' patterns and WHR (OR: 0·89, 95 % CI 0·62, 1·28 and OR: 1·16, 95 % CI 0·69, 1·42, respectively). None of the identified dietary patterns was associated when defining obesity with waist circumference or BMI. In conclusion, participants had a greater chance of central obesity defined based on WHR following a lunchtime pattern with a higher and positive loading factor for 'Bread, grains and fat'.