malabsorption could be a risk factor in the development of these diseases. Because bacterial metabolism alters folic acid status and intestinal bacterial colonization is altered by nutritional factors and carbohydrate malabsorption syndromes, dietary measurements should not rely solely on folic acid supplementation but should also consider carbohydrate malabsorption syndromes, especially fructo...

OBJECTIVE To study fructose malabsorption in children and adolescents with abdominal pain associated with functional gastrointestinal disorders. As an additional objective, the association between intestinal fructose malabsorption and food intake, including the estimated fructose consumption, weight, height, and lactulose fermentability were also studied. METHODS The study included 31 patient...

The carotenoids lutein and zeaxanthin are believed to protect the human macula by absorbing blue light and quenching free radicals. Intestinal malabsorption syndromes such as celiac and Crohn's disease are known to cause deficiencies of lipid-soluble nutrients. We hypothesized that subjects with nutrient malabsorption syndromes will demonstrate lower carotenoid levels in the macula and blood, a...

Question 1: In daily clinical usage the terms maldigestion, malabsorption, and malassimilation are not always clearly separated. What are the exact definitions as a basis for understanding as well as regarding reasonable differential diagnostics? Dietrich: Malassimilation is the umbrella term for a deficit of nutrients and includes maldigestion (failure of enzymatic intraluminal extraction of c...

OBJECTIVE African Americans commonly have lower liver fat accumulation than Hispanics, despite a similar propensity for obesity. Both ethnicities exhibit high consumption of fructose-containing beverages, which has been associated with high liver fat owing to the lipogenic properties of fructose. Therefore, differences in fructose absorption may be an important factor in regulating liver fat de...