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Lactose — chemical composition, dietary sources, and clinical indications for exclusion. Who may benefit from a lactose-free nutritional regimen?

Julia Wójcik

Julia Wójcik

2026-03-22
7 min. read
Lactose — chemical composition, dietary sources, and clinical indications for exclusion. Who may benefit from a lactose-free nutritional regimen?
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A comprehensive exploration of lactose-related topics: spanning its biochemical properties, an exhaustive inventory of lactose-rich foods, and evidence-based dietary recommendations for individuals with intolerance. The guide further elucidates digestive mechanisms, scientifically validated substitutes for conventional dairy products, and aligns with the latest clinical nutrition guidelines and peer-reviewed research.

Lactose in milk

The lactose content of cow's milk is in the range of 4.55.2% (Table 1). It is this double sugar that is responsible for the pleasant, slightly sweet taste of milk, the sweetness of which is about 1015% sucrose [2].

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Dietary Recommendations Lactose-free Diet Nutrition Guidelines Clinical Nutrition Dairy Products Dairy Nutrition
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