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Introduction
Milk and other dairy products are often fed to newborn children during infancy to provide nutrients that assist in growth and development. However, not all humans have the ability to digest milk, specifically a component in milk and dairy products called lactose, without experiencing pain or discomfort. The inability to digest lactose is due to the individual lacking the enzyme lactase that is found in the intestine that allows lactose to be broken down (Deng et al. 2015; Amiri et al. 2015). Some common symptoms of lactose intolerance are flatus, abdominal pain, bloating, stomach rumbling, diarrhea, nausea, and constipation, among others (Deng et al. 2015; Szilagyi 2015a...
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References
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Donovan, J.R. (2019). Lactose Intolerance. In: Shackelford, T., Weekes-Shackelford, V. (eds) Encyclopedia of Evolutionary Psychological Science. Springer, Cham. https://doi.org/10.1007/978-3-319-16999-6_834-1
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DOI: https://doi.org/10.1007/978-3-319-16999-6_834-1
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