Changes in urinary metabolomic profile show the effectiveness of a nutritional intervention in children 6–12 years old: The ALINFA study

Author:

Andueza Naroa12,Muñoz‐Prieto David12,Romo‐Hualde Ana12,Cuervo Marta123,Navas‐Carretero Santiago1234ORCID

Affiliation:

1. Department of Nutrition, Food Sciences and Physiology, Faculty of Pharmacy and Nutrition University of Navarra Pamplona Spain

2. Center for Nutrition Research University of Navarra Pamplona Spain

3. Navarra Institute for Health Research (IdiSNA) Pamplona Spain

4. Biomedical Research Networking Center for Physiopathology of Obesity and Nutrition (CIBERObn) Institute of Health Carlos III Madrid Spain

Abstract

AbstractDiet plays an essential role in health and disease. Therefore, its determination is an important component of many investigations. The aim of the study was to evaluate the effect of a nutritional intervention on the urinary metabolome in children aged 6–12 years. Also, it was intended to identify biomarkers of diet quality and dietary intake. A 2‐month, randomized, controlled, parallel trial was conducted in Spanish children. The analyses focused on the ALINFA group, which followed a full‐fixed meal plan including healthy products, ready‐to‐eat meals, and healthy recipes. Diet quality was assessed by the KIDMED index and dietary intake by a food frequency questionnaire. Untargeted metabolomic analysis on urine samples was carried out, and multivariate analyses were performed for pattern recognition and characteristic metabolite identification. PLS‐DA and Volcano plot analyses were performed to identify the discriminating metabolites of this group. 12 putative metabolites were found to be the most relevant to this intervention. Most of them were products derived from protein and amino acid metabolism (N‐Ribosylhistidine, indolacrylic acid, and peptides) and lipid metabolism (3‐oxo‐2‐pentylcyclopentane‐1‐hexanoic acid methyl, Suberoyl‐L‐carnitine, and 7‐Dehydrodichapetalin E). All these metabolites decreased after the intervention, which was mainly associated with a decrease in the consumption of fatty meat and total fat, especially saturated fat. In turn, N‐Ribosylhistidine and Suberoyl‐L‐carnitine were negatively associated with diet quality, as well as able to predict the change in KIDMED index. In conclusion, the changes observed in urinary metabolome demonstrate the effectiveness of the ALINFA nutritional intervention.

Funder

Gobierno de Navarra

Publisher

Wiley

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