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- Title
The impact of processing meat and fish products on phosphorus intake in chronic kidney disease patients.
- Authors
Lou-Arnal, Luis M.; Caverni-Muñoz, Alberto; Arnaudas-Casanova, Laura; Vercet-Tormo, Antonio; Gimeno-Orna, José A.; Sanz-París, Alejandro; Caramelo-Gutiérrez, Rocío; Álvarez-Lipe, Rafael; Sahdalá-Santana, Laura; Gracia-García, Olga; Luzón-Alonso, Marta
- Abstract
Introduction and objectives: The use of phosphate additives in meat and fish processing leads to a phosphorus overload that we cannot quantify through labelling or food composition tables. We analysed this increase by measuring phosphorus content in these products by spectrophotometry. Materials and method: We determined the phosphorus/protein ratio in meat and fish products with varying degrees of processing by spectrophotometry (phosphorus) and the Kjeldahl method (proteins). We contrasted these results with those reflected in the food composition tables. Results: The phosphorus/ protein ratio was higher in processed meat products (15.83mg/g) than in battered (11.04mg/g) and frozen meat products (10.5mg/g), and was lower in fresh (8.41mg/g) and refrigerated meat products (8.78mg/g). Fresh white fish had a phosphorus/protein ratio of 8.58mg/g, while in frozen white fish it increased by 22% (10.3mg/g) and battered, by 46% (12.54mg/g). The information in the tables was poor and confusing, and no reference is made to the brands tested. Conclusions: Processing meat and fish products poses a serious obstacle to the reduction of phosphorus intake. The current regulatory framework does not assist us in the objective of reducing phosphorus additives, since it considers them safe for public consumption. Overcoming these barriers requires a coordinated effort to demonstrate that a high intake of these additives may be harmful to the general population and it should be more closely examined by regulators.
- Subjects
FOOD industry; MEAT industry; FISH industry; PHOSPHORUS; KIDNEY diseases; FOOD composition; FOOD labeling; PROTEIN content of food; PATIENTS
- Publication
Nefrologia, 2013, Vol 33, Issue 6, p797
- ISSN
0211-6995
- Publication type
Article
- DOI
10.3265/Nefrologia.pre2013.Sep.12168