Lactose is most recognizable as an ingredient in milk that sometimes causes problems for individuals. These people have what is known as a lactose sensitivity, or in other cases a lactose intolerance. While minor, this condition can force individuals to find different forms of milk to receive their daily dairy requirements. Dry milk can come in forms free of lactose, but that isn't always the case.
Lactose
Lactose is a sugar found in milk and milk products, according to the National Institutes of Health. Although it is not a necessary nutrient, it is much easier to consume dairy products containing lactose rather than going through the effort of filtering out the sugar through processing. Lactose is broken down in the body into glucose and galactose, which are then able to enter the body's bloodstream. Lactase is the enzyme used to break down lactose.
Lactose Intolerance
Lactose intolerance results from a deficiency in the lactase enzyme. Individuals with a sensitivity to lactose are those whose bodies produce a small amount of lactase -- this allows them to process lactose initially, but once the enzymes are used up, the body is unable to process any further lactose consumed. This can result in small stomachaches, depending on the amount of lactose consumed.
Dry Milk
Dry milk is the same as normal cow's milk, but the cream and water have been removed from the product, turning the milk into a powder. This powder is non-perishable and can be stored at room temperature, although it should be stored in an airtight container to protect it from moisture. Dry milk is often used in food pantries and food reserves, and it is mixed with water to be prepared for consumption.
Lactose Levels
According to the results of an experiment published by the University of Southern California, both dry milk and cow's milk contain virtually similar amounts of lactose in them. This means neither is preferable to someone with a lactose sensitivity, and consuming either is likely to elicit the same reaction in your body.
Considerations
There are forms of dry milk that are for individuals with lactose intolerance or lactose sensitivities, but these are labeled as such. Other forms of milk, such as goat's milk, feature lower levels of lactose that can be processed by some individuals with lactose sensitivities. If you suffer from lactose problems, your doctor should be able to direct you to the form of milk best suited for your condition and dietary needs.
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