OBJECTIVE This observational validation study was conducted under controlled conditions to test the accuracy of dietary recall in normal weight, overweight, and obese men using the USDA five-step multiple-pass method for dietary recall. DESIGN Cross-sectional analysis of actual and recalled intake of food during 1 day. SUBJECTS/SETTING Forty-two men ranging in age from 21 to 65 years and in...

There has been a recent resurgence of interest in bile salt metabolism. Normally the body contains about 3 g. of bile salts. These comprise conjugates of cholic acid and chenodesoxycholic acid. The free acids are derived from the oxidation of cholesterol in the liver and once formed are conjugated with either taurine or glycine, after which they are secreted into the bile and so enter the small...

The ileostomy model is considered to be a reliable model to reflect small bowel absorption. Studies in ileostomy subjects have shown that inulin and oligofructose pass through the small bowel without degradation and without influencing the absorption of nitrogen, fat, starch, calcium, magnesium or zinc. Inulin and oligofructose do not have any considerable effect on cholesterol absorption or bi...