The effect of fruits and vegetables on urinary stone risk factors

Meschi, Tiziana; Maggiore, Umberto; Fiaccadori, Enrico; Schianchi, Tania; Bosi, S.; Adorni, Giuditta; Ridolo, Erminia; Guerra, Angela; Allegri, Franca; Novarini, A; Borghi, Loris

doi:10.1111/j.1523-1755.2004.66029.x

Cited by 173 publications

(105 citation statements)

References 33 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Increased intake of fruit and vegetables (excluding those with high oxalate content) increases citrate excretion and consequently decreases urinary saturation for calcium oxalate and calcium phosphate. In fact hypocitraturic subjects have a lower fruit intake (Domrongkitchaiporn et al 2006, observational study L) (5) and an high consumption of vegetables involves a significant protection against the risk of stone formation (Hess et al 1994, observational study L, Siener et al 2005, observational non controlled study L, Trinchieri A et al 2006 and, observational studies L, Meschi et al 2004, interventional study M) (6)(7)(8)(9)(10).…”

Section: Vegetablesmentioning

confidence: 99%

Dietary treatment of urinary risk factors for renal stone formation. A review of CLU Working Group

Prezioso

Strazzullo

Lotti

et al. 2015

Arch Ital Urol Androl

Self Cite

158

View full text Add to dashboard Cite

Objective: Diet interventions may reduce the risk of urinary stone formation and its recurrence, but there is no conclusive consensus in the literature regarding the effectiveness of dietary interventions and recommendations about specific diets for patients with urinary calculi. The aim of this study was to review the studies reporting the effects of different dietary interventions for the modification of urinary risk factors in patients with urinary stone disease. Materials and Methods: A systematic search of the Pubmed database literature up to July 1, 2014 for studies on dietary treatment of urinary risk factors for urinary stone formation was conducted according to a methodology developed a priori. Studies were screened by titles and abstracts for eligibility. Data were extracted using a standardized form and the quality of evidence was assessed. Results: Evidence from the selected studies were used to form evidencebased guideline statements. In the absence of sufficient evidence, additional statements were developed as expert opinions. Conclusions: General measures: Each patient with nephrolithiasis should undertake appropriate evaluation according to the knowledge of the calculus composition. Regardless of the underlying cause of the stone disease, a mainstay of conservative management is the forced increase in fluid intake to achieve a daily urine output of 2 liters. Hypercalciuria: Dietary calcium restriction is not recommended for stone formers with nephrolithiasis. Diets with a calcium content ≥ 1 g/day (and low protein-low sodium) could be protective against the risk of stone formation in hypercalciuric stone forming adults. Moderate dietary salt restriction is useful in limiting urinary calcium excretion and thus may be helpful for primary and secondary prevention of nephrolithiasis. A low-normal protein intake decrease calciuria and could be useful in stone prevention and preservation of bone mass. Omega-3 fatty acids and bran of different origin decreases calciuria, but their impact on the urinary stone risk profile is uncertain. Sports beverage do not affect the urinary stone risk profile. Hyperoxaluria: A diet low in oxalate and/or a calcium intake normal to high (800-1200 mg/day for adults) reduce the urinary excretion of oxalate, conversely a diet rich in oxalates and/or a diet low in calcium increase urinary oxalate. A restriction in protein intake may reduce the urinary excretion of oxalate although a vegetarian diet may lead to an increase in urinary oxalate. Adding bran to a diet low in oxalate cancels its effect of reducing urinary oxalate. Conversely, the addition of supplements of fruit and vegetables to a mixed diet does not involve an increased excretion of oxalate in the urine. The intake of pyridoxine reduces the excretion of oxalate. Hyperuricosuria: In patients with renal calcium stones SummaryNo conflict of interest declared. DOI: 10.4081/aiua.2015.2.105the decrease of the urinary excretion of uric acid after restriction of dietary protein and purine is suggested although not cle...

show abstract

Section: Vegetablesmentioning

confidence: 99%

Dietary treatment of urinary risk factors for renal stone formation. A review of CLU Working Group

Prezioso

Strazzullo

Lotti

et al. 2015

Arch Ital Urol Androl

Self Cite

158

View full text Add to dashboard Cite

show abstract

“…Higher consumption of fruits and vegetables may increase urinary oxalate but also increases urinary citrate, an important inhibitor of calcium stones. In one study of 12 healthy adults, dietary elimination of fruits and vegetables resulted in lower urinary oxalate but also decreased urinary citrate by 44% (7). Overall, fruit and vegetable restriction increased the urinary relative supersaturation (RSS) for calcium oxalate by 30% (7).…”

Section: T He Dietary Approaches To Stop Hypertension (Dash)mentioning

confidence: 99%

DASH-Style Diet and 24-Hour Urine Composition

Taylor¹,

Stampfer²,

Mount³

et al. 2010

Clinical Journal of the American Society of Nephrology

112

View full text Add to dashboard Cite

Background and objectives: We previously observed associations between a Dietary Approaches to Stop Hypertension (DASH)-style diet and large reductions in kidney stone risk. This study examined associations between a DASH-style diet and 24-hour excretions of urinary lithogenic factors.Design, setting, participants, & measurements: We studied 3426 participants with and without nephrolithiasis in the Health Professionals Follow-up Study (HPFS) and the Nurses' Health Studies (NHS) I and II. A dietary DASH score was based on seven components: high intake of fruits, vegetables, nuts and legumes, dairy products, and whole grains and low intake of sweetened beverages and red and processed meats. We used analysis of covariance to adjust for age, stone history, body size, and other factors.Results: Comparing participants in the highest to lowest quintiles of DASH score, multivariate-adjusted urinary calcium excretion was 3% greater in HPFS (P trend 0.12), 10% greater in NHS I (P trend <0.01), and 12% greater in NHS II (P trend 0.05). Urinary oxalate was 4% to 18% greater (P trend all <0.03), urinary citrate was 11% to 16% greater (P trend all <0.01), and urinary volume was 16% to 32% greater (P trend all <0.001). Higher DASH score was associated with higher urine potassium, magnesium, phosphate, and pH, and lower relative supersaturations (RSS) of calcium oxalate (women only) and uric acid.Conclusions: A DASH-style diet may reduce stone risk by increasing urinary citrate and volume. The small associations between higher DASH score and lower RSS suggest unidentified stone inhibitors in dairy products and/or plants.

show abstract

“…The major determinant of acid-base balance in the steady state is net endogenous acid production, resulting from a combination of dietary acid intake, dietary alkali intake, and incomplete metabolism of organic acids (8). The major dietary sources of alkali are the conjugate bases of potassium salts that serve as bicarbonate precursors, often found in fruits and vegetables (9,10). The major dietary sources of acid intake are proteins containing amino acids with sulfur moieties, largely found in nondairy animal protein including meat, poultry, fish, and eggs (8).…”

Section: Introductionmentioning

confidence: 99%

Dietary and Lifestyle Factors and Medical Conditions Associated with Urinary Citrate Excretion

Mandel

Taylor

Curhan

2013

Clinical Journal of the American Society of Nephrology

View full text Add to dashboard Cite

SummaryBackground and objectives Lower urinary citrate excretion is a risk factor for nephrolithiasis and associated with metabolic acidosis and higher prevalence of hypertension and insulin resistance. This study sought to quantify the independent predictors of urinary citrate excretion in population-based cohorts.Design, setting, participants, & measurements A cross-sectional study of 2561 individuals from the Health Professionals Follow-Up Study and Nurses' Health Studies I and II who provided two 24-hour urine collections was conducted. Dietary data were ascertained from the semiquantitative food frequency questionnaire. Lifestyle and disease data were derived from responses to biennial questionnaires. Multivariable linear regression was used to quantify the predictors of urinary citrate excretion. Conclusions Several dietary and lifestyle factors and medical conditions are independently associated with urinary citrate excretion. Results

show abstract

The effect of fruits and vegetables on urinary stone risk factors

Cited by 173 publications

References 33 publications

Dietary treatment of urinary risk factors for renal stone formation. A review of CLU Working Group

Dietary treatment of urinary risk factors for renal stone formation. A review of CLU Working Group

DASH-Style Diet and 24-Hour Urine Composition

Dietary and Lifestyle Factors and Medical Conditions Associated with Urinary Citrate Excretion

Contact Info

Product

Resources

About