Carbohydrate absorption from fruit juice in young children

Area of Science:

• Pediatric Nutrition
• Gastroenterology
• Carbohydrate Metabolism

Background:

• Fruit juice is commonly introduced in the diets of infants and toddlers.
• Understanding carbohydrate absorption from different juices is crucial for pediatric health.
• Apple and white grape juices are popular choices for young children.

Purpose of the Study:

• To compare carbohydrate absorption in healthy children after consuming apple juice versus white grape juice.
• To evaluate potential differences in malabsorption rates between the two juices.
• To assess age-specific responses in infants and toddlers.

Main Methods:

• A randomized, double-blind crossover study was conducted with 28 healthy children (18 infants, 10 toddlers).
• Participants underwent breath hydrogen (H2) testing after consuming age-specific servings of apple or white grape juice.
• Positive H2 responses (> 20 ppm) indicated incomplete carbohydrate absorption.

Main Results:

• Carbohydrate malabsorption was significantly more frequent after apple juice (54%) than white grape juice (19%).
• Toddlers showed significantly higher peak breath H2 responses after apple juice compared to white grape juice.
• While differences were not significant in infants, toddlers exhibited greater malabsorption from apple juice than infants.

Conclusions:

• White grape juice resulted in less carbohydrate malabsorption compared to apple juice in healthy 6- and 18-month-old children.
• These findings suggest white grape juice may be better tolerated in terms of carbohydrate absorption.
• The study highlights potential differences in juice tolerance related to carbohydrate composition.