Association between ultrapocessed food and chronic kidney disease.

The modern diet is closely linked to the consumption of processed foods, causing an increase in the intake of salt, simple sugars, phosphorus and added potassium. This excess intake is associated with an increased risk of obesity, diabetes, hypertension and chronic kidney disease (CKD). CKD, which according to data from the ENRICA study affects 15% of the population, magnifies its impact due to the higher prevalence of diabetes and hypertension and due to limitations in the management of sodium and phosphorus.

Is It Possible to Include Potato in the Diet of Chronic Kidney Disease Patients? New Culinary Alternatives for Limiting Potassium Content.

Objective(s): Despite the nutritional benefits of potato tuber, patients with chronic kidney disease (CKD) should limit the consumption because of its high potassium content. Some culinary treatments have previously been suggested to reduce the final content of this mineral; however, these are either not effective enough or involve very long procedures that affect the final flavor of the food. The aim of this work was to analyze the effect of culinary treatments on the reduction in potassium content in potatoes, offering new alternatives for minimizing the final content of this mineral to allow the increase of potato intake by patients with CKD.

Cooking Legumes: A Way for Their Inclusion in the Renal Patient Diet.

Objective: It has been observed that the consumption of legumes within a varied and Mediterranean diet has beneficial effects in prevention and control of many diseases, including chronic kidney disease (CKD). Recently, legumes have also been considered a good source of protein for CKD patients. However, despite their benefits, guidelines still recommend a limit to their consumption by these patients because of legumes' high potassium and phosphorus content, which are minerals whose intake must be controlled.

Reduction of potassium content of green bean pods and chard by culinary processing. Tools for chronic kidney disease.

Introduction: In order to prevent a possible hyperkalemia, chronic renal patients, especially in advanced stages, must follow a low potassium diet. So dietary guidelines for chronic kidney disease recommend limiting the consumption of many vegetables, as well as to apply laborious culinary techniques to maximize the reduction of potassium.

Objective: The aim of this work is to analyze potassium content from several vegetable, fresh products, frozen and preserved, as well as check and compare the effectiveness in potassium reduction of different culinary processes, some of them recommended in dietary guidelines such as soaking or double cooking.

Hidden sources of phosphorus: presence of phosphorus-containing additives in processed foods.

Introduction And Objectives: An increased consumption of processed foods that include phosphorus-containing additives has led us to propose the following working hypothesis: using phosphate-rich additives that can be easily absorbed in processed foods involves a significant increase in phosphorus in the diet, which may be considered as hidden phosphorus since it is not registered in the food composition tables.

Materials And Method: The quantity of phosphorus contained in 118 processed products was determined by spectrophotometry and the results were contrasted with the food composition tables of the Higher Education Centre of Nutrition and Diet, those of Morandeira and those of the BEDCA (Spanish Food Composition Database) Network.

Results: Food processing frequently involves the use of phosphoric additives.

The impact of processing meat and fish products on phosphorus intake in chronic kidney disease patients.

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 fresh meat and fish products with varying degrees of processing by spectrophotometry (phosphorus) and the Kjeldahl method (proteins).