Differences in 6-year change in BMI allele C of rs7525279 according to baseline intake of food source B-vitamins. Data are beta coefficient ± SE. The general linear model was used to test the genetic association of baseline food source intake of B-vitamins with 6-year change in BMI after adjusted for age, total energy intake, physical activity (MET), baseline BMI, drinking, smoking, alternative health eating index, calcium and vitamin D intervention, diet modification intervention and other B-vitamins (mutually adjusted)