Lactase deficiency in children: intolerance of milk sugar

lactase deficiency in children Lactase deficiency - a widespread disease associated with intolerance to milk sugar, which is very important for infants whose diets are the main place is occupied by dairy products.Adults, too, often suffer from this disease, but because their food is more diverse medical care are rarely traded, adjusting its state decrease or eliminate the use of dairy products.


lactase deficiency Clinical manifestations are due to incomplete splitting of lactose (milk sugar) in the small intestine.

Primary lactase deficiency, which is sometimes called true, due to the reduction or absence of the enzyme lactase, which, in fact, responsible for the breakdown of lactose in the small intestine.

Secondary lactase deficiency manifests itself when damaged enterocytes, which can be caused by inflammatory, infectious, immune, atrophic and some other factors.

It should be noted that the expression of lactase deficiency in response to damage to the enterocytes may develop as the first clinical sign of damage to the enterocytes as lactase is practically on the tops of the villi.If the damaging factor is insignificant, symptoms of lactase deficiency cropped without treatment within a week by updating enterocytes.

Pathogenesis and clinical picture

clinical picture lactase deficiency may be different.It depends on the quantity of lactose falling within the lumen of the colon which, in turn, determined by the level lowering activity lactase differences intestinal biocenosis, the individual sensitivity and different amounts of lactose consumed.

Getting into the lumen of the colon, the lactose becomes the substrate on which the normal microflora develops well.The bacteria are grown only on lactose, which is typical for full breastfeeding it is best utilized.The bacteria are grown on lactose and glucose Glucose: a source of energy Glucose: The energy source , which is typical for mixed and artificial feeding, utilize lactose worse.

When a lactose in more than able to digest the bacteria develops the characteristic clinical symptoms, manifested by flatulence Flatulence - when you need to worry about? Flatulence - when you need to worry about? , bloating Bloating - if you are bursting inside Bloating - if you are bursting inside , liquid foamy chair with an acidic odor without pathological impurities.Children become restless after a few minutes after a meal, throw the chest, stop sucking from a bottle, draw in his legs to his stomach, crying.


diagnosis of lactase deficiency is simple.It draws attention to the characteristic clinical symptoms, by which the doctor prescribes additional methods of investigation.

main method of research confirming lactase deficiency, is to determine the amount of carbohydrates in the feces.Inexpensive and accessible method to determine the overall body's ability to metabolize carbohydrates.Children under the age of one year in normal carbohydrates in the feces should be less than 0, 25%, and among those whose age is older carbohydrates should be omitted entirely.


Treatment of primary lactase deficiency is to reduce the consumption of dairy products, but it can be done in older children and adults.Young children, the main power of which is milk, can not stay without it, so they used the scheme of gradual adaptation to lactose.

If the baby is bottle-fed, he selected a special lactose-free mixture or a mixture with a reduced amount of lactose.Most start with a lactose free and pass the mixture with a reduced amount of lactose after cupping the main symptoms of the disease.

If the child is breast-fed, it is possible to use special enzymes purchased from a pharmacy: Lactase, or baby-Lactase enzyme in age dosage.Before each feeding mother to express some milk (5-10 ml), pours into it the required dose of the enzyme after 10 minutes after fermentation gives a child, and then as usual breast feeding.

Treatment of secondary lactase deficiency is relieving the underlying disease.

Svetlana Shimkovich