• Preventive medicine · Jul 2023

    A healthier retail food environment around the home is associated with longer duration of weight-loss maintenance among successful weight-loss maintainers.

    • Sasha Clynes, Alyssa Moran, Julia Wolfson, Kimberly Gudzune, Timothy Shields, Michelle Cardel, Gary Foster, and Suzanne Phelan.
    • The Johns Hopkins Bloomberg School of Public Health; 615 N. Wolfe Street, Baltimore, MD 21205, United States of America. Electronic address: sclynes1@jh.edu.
    • Prev Med. 2023 Jul 1; 172: 107536107536.

    AbstractFew studies have examined associations between the retail food environment and weight maintenance. This study examined the residential Retail Food Environment Index (RFEI) of weight loss maintainers and associations with weight maintenance duration, perceived effort and difficulty managing weight, and coping and monitoring strategies. Participants were 6947 members of the WW Success Registry (enrolled January 2018-February 2020), a nationwide (United States) convenience sample of individuals who lost weight using Weight Watchers (WW) and maintained a ≥ 9.1 kg weight loss for ≥1 year (Mean 24.7 kg loss for 3.4 years). Home addresses were geo-coded and the RFEI (ratio of unhealthy [fast-food and convenience stores] to healthy [supermarkets, grocery stores, and fruit/vegetable vendors] outlets) was used to classify the healthfulness of the food environments. Validated questionnaires measured psychological coping and self-monitoring. Compared to individuals living in the healthiest food environments (RFEI<1.6), those in the least healthy food environments (RFEI ≥4.0) maintained weight loss for 0.5 years less (3.2 vs 3.7 years; 95% CI between-group difference = 0.20, 0.80), reported statistically higher scores but not clinically relevant differences on perceived effort (4.6 vs. 4.5; 95% between-group difference = 0.01, 0.21) and difficulty managing their weight (3.1 vs. 3.0; 95% CI between-group difference = 0.01, 0.17) and practice of self-monitoring (2.7 vs. 2.6; 95% CI between-group difference = 0.01, 0.14). No differences in psychological coping were observed. Weight loss maintainers living in the least healthy retail food environments maintained weight loss for a shorter duration compared to those in the healthiest food environments.Copyright © 2023. Published by Elsevier Inc.

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