This suggests that drinking 100 percent fruit juice could lead to weight gain in kids due to high amounts of sugar, which can rival that of soda. Researchers in Canada found that each eight-ounce serving of fruit juice led to a 0.03 BMI increase in children. The team measured changes in BMI alongside each eight-ounce serving of 100 percent fruit juice during each study. They found that, on average, each eight-ounce serving of fruit juice was associated with a BMI increase of 0.03 in children. Additionally, researchers in the UK found that each three-ounce serving of pure fruit juice increased the odds of developing cancer by 12 percent.
