Abstract
OBJECTIVE: To examine the associations between change in plant-centered diet quality and type 2 diabetes risk and change in body size.
RESEARCH DESIGN AND METHODS: A prospective study conducted in the U.S. enrolled adults ages 18-30 years in 1985-1986 (examination year [Y0]) and followed them through 2015-2016. We analyzed the associations between change in plant-centered diet quality over 20 years (Y0-Y20) and diabetes (Y20-30; n = 2,534) and change (Y0-Y20 and Y20-30) in BMI, waist circumference (WC), and weight ( n > 2,434). Plant-centered diet quality was measured using the A Priori Diet Quality Score (APDQS); a higher score favors nutritionally rich plant foods. Cox regression models were used to assess diabetes risk, and linear regression models were used to examine change in body size.
RESULTS: During a mean follow-up of 9.3 (± 1.7) years, 206 case subjects with incident diabetes were observed. In multivariable analysis, participants with the largest increase in APDQS over 20 years had a 48% (95% CI 0.31-0.85; P trend < 0.001) lower risk of diabetes over the subsequent 10 years compared with participants whose score remained stable. Each 1-SD increment in APDQS over 20 years was associated with lower gains in BMI (-0.39 kg/m 2; SE 0.14; P = 0.004), WC (-0.90 cm; SE 0.27; P < 0.001) and weight (-1.14 kg; SE 0.33; P < 0.001) during the same period, but not with subsequent changes.
CONCLUSIONS: Young adults who increased plant-centered diet quality had a lower diabetes risk and gained less weight by middle adulthood.
Original language | English (US) |
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Pages (from-to) | 2796-2803 |
Number of pages | 8 |
Journal | Diabetes care |
Volume | 43 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2020 |
Bibliographical note
Funding Information:Funding. The CARDIA study is supported by NationalHeart,Lung,andBloodInstitutecontracts HHSN268201800003I, HHSN268201800004I, HHSN268201800005I, HHSN268201800006I, and HHSN268201800007I. Y.C. is supported by a Graduate and Professional Research Grant from the Healthy Food, Healthy Lives Institute and the MnDRIVE Global Food Ventures Professional Development Program, University of Minnesota Twin Cities.