How do you test lactose?

Lactose can be tested using various methods, one common approach being the use of a lactose test strip, which changes color in the presence of lactose. Additionally, a more precise method involves enzymatic assays that measure the amount of glucose released after lactose is hydrolyzed by the enzyme lactase. Another technique is the use of chromatography to separate and quantify lactose in a sample. For individuals, a lactose tolerance test can measure blood glucose levels after lactose ingestion to assess lactose digestion.