Association of Adherence to The Mediterranean Diet with Urinary Factors Favoring Renal Lithiasis: Cross-Sectional Study of Overweight Individuals with Metabolic Syndrome.

Abstract

Our purpose was to study the relationship of adherence to the Mediterranean diet (MedDiet) with urinary factors that favor the formation of renal calcium and uric acid stones in overweight and obese participants who had metabolic syndrome. This cross-sectional study examined 267 participants. A well-known MedDiet score (range 0-9) was calculated for each patient, and patients were then categorized has having low (≤3), medium (4-5), or high (≥6) adherence to the MedDiet. Baseline characteristics and urinary parameters were also analyzed. High calcium salt urinary crystallization risk (CaUCR) and high uric acid urinary crystallization risk (UrUCR) were calculated from urinary parameters using pre-defined criteria. More than half of patients with MedDiet scores ≤3 had high UrUCR (55.4%) and high CaUCR (53.8%). In contrast, fewer patients with high adherence (≥6) to the MedDiet had high UrUCR (41.2%) and high CaUCR (29.4%). Relative to those with low adherence, individuals with high adherence had a prevalence ratio (PR) of 0.77 for a high UrUCR (95% CI: 0.46-1.12; p for trend: 0.069) and a PR of 0.51 for a high CaUCR (95% CI: 0.26-0.87; p for trend: 0.012) after adjusting for age, sex, body mass index, type 2 diabetes, and total energy intake. Our findings indicate that greater adherence to the MedDiet was associated with a reduced CaUCR and a reduced UrUCR. This suggests that adequate dietary management using the MedDiet patterns may prevent or reduce the incidence and recurrence of calcium salt and uric acid renal stones.

• Authors: Rafael M Prieto, Adrian Rodriguez, Pilar Sanchis, Margalida Morey, Miquel Fiol, Felix Grases, Olga Castañer, Miguel A Martínez-González, Jordi Salas-Salvadó, Dora Romaguera
• Journal: Nutrients (Nutrients) Vol. 11 Issue 8 (Jul 24 2019) ISSN: 2072-6643 [Electronic] Switzerland
• PMID: 31344950 (Publication Type: Journal Article, Multicenter Study)

Chemical References

• Biomarkers

Topics

• Aged
• Biomarkers (urine)
• Cross-Sectional Studies
• Diet, Healthy
• Diet, Mediterranean
• Feeding Behavior
• Female
• Humans
• Male
• Metabolic Syndrome (diagnosis, diet therapy, epidemiology, urine)
• Middle Aged
• Overweight (diagnosis, diet therapy, epidemiology, urine)
• Patient Compliance
• Prevalence
• Protective Factors
• Randomized Controlled Trials as Topic
• Recurrence
• Risk Assessment
• Risk Factors
• Spain (epidemiology)
• Time Factors
• Treatment Outcome
• Urolithiasis (diagnosis, epidemiology, prevention & control, urine)