Milk intolerance in children with persistent sleeplessness: a prospective double-blind crossover evaluation

Area of Science:

• Pediatrics
• Sleep Medicine
• Allergy & Immunology

Background:

• Infant and childhood sleep disturbances are common, often leading to extensive medical evaluations.
• Persistent sleeplessness in young children can be challenging to diagnose and manage.
• Dietary factors, such as cow's milk intolerance, are potential contributors to sleep issues.

Purpose of the Study:

• To investigate the role of undiagnosed cow's milk intolerance in persistent infant sleep problems.
• To evaluate the efficacy of cow's milk exclusion and reintroduction in resolving sleep disturbances.

Main Methods:

• A cohort of 17 children with unexplained persistent sleeplessness was studied.
• Cow's milk was excluded from the diet, and sleep patterns were monitored.
• A double-blind, placebo-controlled crossover challenge with cow's milk was performed.

Main Results:

• Excluding cow's milk led to significant sleep normalization in 15 of 17 children within 5 weeks.
• Objective measures showed decreased time to fall asleep, fewer arousals, and increased total sleep time.
• Reintroduction of cow's milk during the challenge consistently triggered the return of insomnia and agitation.

Conclusions:

• Undiagnosed cow's milk intolerance is a significant, often overlooked, cause of persistent infant sleep problems.
• Dietary elimination and challenge are effective diagnostic tools for identifying cow's milk-related sleep disturbances.
• Early identification and management of cow's milk intolerance can resolve infant sleep issues.