A Study of the Effect of Replacing Sugary Drinks by Low-Sugar Alternatives on Body Weight and Fat Mass in Children (DRINK)

INTERVENTION: 1. Intervention 1: 250 mL per day of sugar‐containing lemonade; 2. Intervention 2: 250 mL per day of lemonade low in sugar. The low‐sugar drinks are sweetened with artificial sweeteners. The intervention will take 18 months. CONDITION: ; Overweight, Obesity ; ; PRIMARY OUTCOME: BMI z‐score.; SECONDARY OUTCOME: 1. Waist circumference; ; ; 2. Bioelectrical impedance (% fat mass); ; ; 3. Sum of four skinfolds (mm); ; ; 4. Dental health; ; ; 5. Sensory evaluation. INCLUSION CRITERIA: 1. Healthy school going boys and girls; 2. Age 5 years and older, children still have to be in elementary school at the end of the study; 3. Children who already habitually consume 250 mL per day or more of sugary drinks.