Dietary fiber consumption in an adult Dutch population.

The intake of dietary fiber in an adult Dutch population aged 25 to 65 years was found to be 24.0 +/- 6.9 gm. per day (mean +/- SD), or 10.5 +/- 2.6 gm. per 1,000 kcal. Important sources of dietary fiber were bread and other cereals (32 percent of dialy intake), potatoes (17 percent), other vegetables (24 percent), and fruit (15 percent). For estimating group means of daily dietary fiber intake, equal precision can obtained by using a seven-day record method or by collecting one-day records from twice as many subjects.