Estimated Dietary Intake of Nitrite and Nitrate in Swedish Children

Kristin Anna Larsson (1) , Per Ola Darnerud (1) , Nils-Gunnar Ilbäck (1) , Leonardo Merino (2)

1 Toxicology Division
2 Chemistry Division 2

This study examined the intake of nitrate and nitrite in Swedish children. Daily intake estimates were based on a nationwide food consumption survey (4-day food diary) and nitrite/nitrate content in vegetables, fruit, cured meat and water. The mean intake of nitrite from cured meat among 2259 children studied was 0.013, 0.010 and 0.007 mg kg-1 body weight day-1 in age groups 4, 8-9 and 11-12, respectively. Among these age groups, three individuals (0.1% of the studied children) exceeded the Acceptable Daily Intake (ADI) of 0.07 mg nitrite kg-1 body weight day-1. The mean intake of nitrate from all foodstuffs and water was 0.84, 0.68 and 0.45 mg kg-1 body weight day-1 for children aged 4, 8-9 and 11-12 years, respectively. No individual exceeded the ADI of 3.7 mg nitrate kg-1 body weight day-1. However, when the total nitrite intake was estimated, including an estimated 5% endogenous conversion of nitrate to nitrite, approximately 12% of the 4-year-old children exceeded the nitrite ADI. Thus, the intake of nitrite in Swedish children may be a concern for young age groups when endogenous nitrite conversion is included in the intake estimates.

Mots clés: Life Sciences

Kristin Anna Larsson, Per Ola Darnerud, Nils-Gunnar Ilbäck, Leonardo Merino. Estimated Dietary Intake of Nitrite and Nitrate in Swedish Children. Food Additives and Contaminants, 2011, pp.1. ⟨10.1080/19440049.2011.555842⟩. ⟨hal-00677968⟩