Flatulence lactose intolerance

Nausea can occur. Esophagitis following inhalation of cromoglicate has been reported. It was much improved by prophylactic antacids given before each inhalation (SEDA-5, 169). In a patient with lactose intolerance, cromoglicate disodium capsules with lactose produced nausea, bloating, and flatulence. Lactose-free formulations produced no such symptoms (SEDA-13, 135). 

Expression of the enzyme diminishes with age and by adulthood lactase levels are 10% or less of those seen in infancy. If symptoms of flatulence, abdominal discomfort, bloating, or diarrhea occur after consumption of one or two glasses of milk or of a large portion of ice cream or yogurt, lactose intolerance should be suspected. Suspicion would be increased in a subject from an ethnic group with a high incidence of lactose intolerance (see Table 48-5). 

Lactose intolerance is a distinct entity from cow milk protein sensitivity and causes abdominal pain, diarrhea, nausea, flatulence, and/or bloating. While avoidance of milk and other dairy products will bring relief in children suffering from lactose intolerance, it may cause problems in optimal bone mineralization owing to lack of calcium in diet. Several lactose-free and lactose-reduced milks are now available in markets to cater to such infants. The scope of transgenic technology to reduce the lactose content in the milk of small animals has been reviewed elsewhere in this chapter (Section IV.A). The extension of this technique to include farm animals is targeted in the future. 

A common malabsorption syndrome, lactose intolerance, is characterized by nausea, diarrhea, and flatulence after ingesting dairy products or other foods containing lactose. One of the causes of lactose intolerance is a low level of lactase, which decreases after infancy in most of the world s population (nonpersistant lactase or adult hypolactasia). However, lactase activity remains high in some populations (persistent lactase), including Northwestern Europeans and their descendants. 

Lactose intolerance refers to a condition of pain, nausea, and flatulence after the ingestion of foods containing lactose, most notably dairy products. Although it is often caused by low levels of lactase, it also can be caused by intestinal injury (defined below). 

Some adults have lost the ability to synthesize sufficient quantities of the enzyme lactase. As a result, lactose from dairy products is not broken up during digestion, leading to flatulence, diarrhea, and possible dehydration, which can be serious. Reduced-lactose milk and lactase-containing tablets have made life easier for lactose-intolerant adults (Fig. 22.12). 

Lactose intolerance is the malabsorption of the milk sugar lactose due to a decrease in, or absence of the enzyme lactase, which results In characteristic clinical symptoms (abdominal pain, diarrhea, bloating, flatulence). Three types of lactose intolerance are known ... 

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