<unk>  generally becomes apparent in the first few weeks of a baby's life. Affected infants experience severe diarrhea resulting in life-threatening dehydration, increased acidity of the blood and tissues (acidosis), and weight loss when fed breast milk or regular infant formulas. However, they are able to digest fructose-based formulas that do not contain<unk>  or<unk> . Some affected children are better able to tolerate<unk>  and<unk>  as they get older. Small amounts of<unk>  in the urine (mild<unk> ria) may occur intermittently in this disorder. Affected individuals may also develop kidney stones or more widespread deposits of calcium within the kidneys.<unk>  is a rare disorder; only a few hundred cases have been identified worldwide. However, as many as 10 percent of the population may have a somewhat reduced capacity for<unk>  absorption without associated health problems. This condition may be a milder variation of<unk> .
Glucose-galactose malabsorption
Fructose malabsorption
Sucrose intolerance
Exocrine pancreatic insufficiency
Lactose intolerance
Bile acid malabsorption
Lysinuric protein intolerance
Small intestinal bacterial overgrowth