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    Phosphorus (P)-containing food additives pose a risk for chronic kidney disease (CKD) patients. We aimed to investigate the prevalence of P-containing additives in the Finnish food supply across different food categories to evaluate their burden in CKD, reflecting the situation in Europe. The dataset of 6,176 products was obtained in June-August 2019 from the website, which contains all foodstuffs sold in the grocery stores of the S Group (46% of the Finnish market share in 2019). The food category, full product name, type of P additive (inorganic, organic, and natural P-containing), and reporting methods (name or E number) of P additives were recorded. Duplicates and products lacking ingredient information were excluded. The prevalence of P additives was 36% in the final sample (n = 5,149). Among food categories, the prevalence varied from 4% in dairy-based snacks to 67% in meat products. Altogether 17 different P additives were observed. Inorganic P additives were the most common P additive type, present in 20% of foodstuffs. Natural P-containing additives were observed in 19% and organic P additives in 2% of foodstuffs. The most commonly used P additives were lecithin (E 322), pyrophosphate (E 450), and triphosphate (E 451). E number was used as a reporting method in 49% of foodstuffs, and full name in 44% of foodstuffs. Reporting by E number was particularly common in the products containing inorganic P. The use of P additives is common in the Finnish food supply, indicating the situation in Europe. The high prevalence of inorganic, that is, the most absorbable and potentially most harmful P additives in particular food groups, and their usual reporting only by E numbers can create challenges in CKD dietary counseling. Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.


    Minttu Tuominen, Heini J Karp, Suvi T Itkonen. Phosphorus-Containing Food Additives in the Food Supply-An Audit of Products on Supermarket Shelves. Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation. 2022 Jan;32(1):30-38

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    PMID: 34531113

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