Does milk cause constipation? A crossover dietary trial

Elesa T. Crowley, Lauren T. Williams, Tim K. Roberts, Richard H. Dunstan, Peter D. Jones

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11 Citations (Scopus)
81 Downloads (Pure)

Abstract

The aims of this study were to: (1) determine whether replacement of cow's milk protein with soy resolves Chronic Functional Constipation (CFC); and (2) investigate the effects of cow's milk β casein A1 and cow's milk β casein A2 on CFC. Children diagnosed with CFC were recruited to one of two crossover trials: Trial 1 compared the effects of cow's milk and soy milk; Trial 2 compared the effects of cow's milk β casein A1 and cow's milk β casein A2. Resolution of constipation was defined as greater than eight bowel motions during a two week intervention. Thirteen children (18 to 144 months) participated in Trial 1 (6 boys, 7 girls). Nine participants who completed the soy epoch all experienced resolution (p < 0.05). Thirty-nine children (21 to 144 months) participated in Trial 2 (25 boys, 14 girls). Resolution of constipation was highest during the washout epoch, 81%; followed by cow's milk β casein A2, 79%; and cow's milk β casein A1, 57%; however, the proportions did not differ statistically. The results of Trial 1 demonstrate an association between CFC and cow's milk consumption but Trial 2 failed to show an effect from type of casein. Some other component in cow's milk common to both A1 and A2 milk may be causing a problem in these susceptible children.

Original languageEnglish
Pages (from-to)253-266
Number of pages14
JournalNutrients
Volume5
Issue number1
DOIs
Publication statusPublished - 22 Jan 2013

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    Crowley, E. T., Williams, L. T., Roberts, T. K., Dunstan, R. H., & Jones, P. D. (2013). Does milk cause constipation? A crossover dietary trial. Nutrients, 5(1), 253-266. https://doi.org/10.3390/nu5010253