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Updated: Aug 21, 2026

Multidisciplinary Approach to Obesity Management: A Case Report
Published on: May 30, 2025
Melatonin Use in a School-aged Boy with Obesity Born to a Mother with Type 2 Diabetes
1Department of Pediatrics, NYS Medical Inc., Shibuya-ku, Tokyo, Japan.
Insights
Maternal hyperglycemia increases pediatric obesity risk. Melatonin improved sleep and reduced overeating in an 11-year-old boy, suggesting it may help manage childhood obesity linked to sleep issues.
Area of Science:
- Pediatric Endocrinology
- Metabolic Disorders
- Sleep Medicine
Background:
- Intrauterine exposure to maternal hyperglycemia is a risk factor for pediatric obesity.
- Lifestyle modifications are often insufficient, especially with concurrent sleep disturbances.
- Obesity in children born to diabetic mothers requires effective management strategies.
Purpose of the Study:
- To investigate the potential of melatonin as an adjunct therapy for pediatric obesity.
- To assess the impact of melatonin on sleep quality and appetite regulation in a child with obesity and sleep disturbances.
- To explore the role of sleep dysregulation in exacerbating appetite control issues in pediatric obesity.
Main Methods:
- A case study of an 11-year-old boy born to a mother with type 2 diabetes presenting with rapid weight gain and overeating.
- Standard endocrine evaluations were performed.
- Melatonin (1 mg/day) was administered to address observed severe sleep disturbances.
Main Results:
- The patient experienced significant improvements in sleep quality, including reduced nighttime awakenings.
- A secondary reduction in overeating episodes was reported by parents.
- Gradual weight reduction was observed without any adverse events.
- Endocrine evaluations were within normal limits, ruling out other contributing factors.
Conclusions:
- Melatonin administration may be a beneficial adjunct therapy for pediatric obesity, particularly in cases associated with sleep dysregulation.
- Optimizing sleep behavior with melatonin could favorably influence energy balance and metabolic regulation in vulnerable children.
- Further research is warranted to confirm the efficacy and mechanisms of melatonin in managing pediatric obesity.
Abstract:
Intrauterine exposure to maternal hyperglycemia increases the risk of pediatric obesity. While lifestyle modifications are standard interventions, they are often insufficient, particularly when accompanied by sleep disturbances. An 11-year-old boy, born to a mother with type 2 diabetes, presented with rapid weight gain and severe overeating starting at age 10. Despite strict dietary guidance and physical activity, his weight increased to 62 kg (BMI z-score: 2.44) within one month. Endocrine evaluations were normal, but severe sleep disturbances were observed. Suspecting that sleep dysregulation exacerbated his appetite control, melatonin (1 mg/day) was initiated to target sleep quality. Following treatment, parental reports noted marked improvements in sleep posture and nighttime awakenings, alongside a secondary reduction in overeating episodes and gradual weight reduction without adverse events. Melatonin improves sleep quality and circadian alignment, which may favorably influence energy balance and metabolic regulation. Melatonin administration may serve as a useful adjunct in managing pediatric obesity by optimizing sleep behavior, especially in children with prenatal vulnerabilities and secondary appetite dysregulation. Further studies are required to confirm these observations.
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