Calculated dietary intakes of nitrate and nitrite by young Finns.
Dietary intakes of nitrate and nitrite of 1212 Finns aged 9, 12, 15, 18, 21, and 24 years were calculated using food consumption data obtained by the 48-hour recall method in 1986, in connection with the Study on Cardiovascular Risk in Young Finns. Files on nitrate and nitrite content of foods and water were compiled for this study. The mean daily intakes of nitrate (NO3-) and nitrite (NO2-) from food were 54.0 mg and 1.4 mg, respectively. Vegetables including potatoes contributed 86% of nitrate intake and meat products 69% of the nitrite intake. If two litres of water within the mode concentration class of nitrate and nitrite were used, the intake of nitrate from water would have been between 1.0 and 2.0 mg and the intake of nitrite between 0.0 and 0.2 mg.