“Among cohort studies in children, each additional serving per day of 100% fruit juice was associated with a 0.03 (95% CI, 0.01-0.05) higher BMI change.” Isn’t

“Among cohort studies in children, each additional serving per day of 100% fruit juice was associated with a 0.03 (95% CI, 0.01-0.05) higher BMI change.” Isn’t that a tiny effect? How much juice can a person drink? 5 additional servings per day of juice would be associated with at most a 0.25 BMI increase. However, you could imagine that it affects different kids differently, and that small effect size reflects a mix of zero effect on most kids and a medium-sized effect on the kids who are more susceptible for whatever reason.