2020
DOI: 10.1089/end.2020.0031
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Using Low-Calorie Orange Juice as a Dietary Alternative to Alkali Therapy

Abstract: Purpose: The pursuit of a dietary source to increase urine pH and citrate in stone formers has been ongoing for >30 years. Early evidence showed that orange juice (OJ) contains alkali and citrate, but high sugar and ascorbic acid content limited the use of OJ as a viable daily source of alkali. Recently, novel low-calorie OJs have emerged and could potentially be a better option. Methods: Beverages with high concentrations of alkali citrate and malate were identified using ion chromatography. Two low-calorie O… Show more

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Cited by 15 publications
(21 citation statements)
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“…Small prospective clinical studies found that orange, melon, grapefruit, and lemon juices increased urinary citrate levels [13][14][15][16][17][18][19][20][21]. Baia et al, for example, showed that citrate increased after 4 h of ingestion to 0.35 ± 0.15 vs. baseline of 0.22 ± 0.10 mg/mg creatinine in the melon group, 0.32 ± 0.17 vs. baseline of 0.14 ± 0.09 mg/mg creatinine in the orange group, and to 0.29 ± 0.21 vs. baseline of 0.15 ± 0.12 mg/mg creatinine in the lime group.…”
Section: Resultsmentioning
confidence: 99%
“…Small prospective clinical studies found that orange, melon, grapefruit, and lemon juices increased urinary citrate levels [13][14][15][16][17][18][19][20][21]. Baia et al, for example, showed that citrate increased after 4 h of ingestion to 0.35 ± 0.15 vs. baseline of 0.22 ± 0.10 mg/mg creatinine in the melon group, 0.32 ± 0.17 vs. baseline of 0.14 ± 0.09 mg/mg creatinine in the orange group, and to 0.29 ± 0.21 vs. baseline of 0.15 ± 0.12 mg/mg creatinine in the lime group.…”
Section: Resultsmentioning
confidence: 99%
“…Due to concerns over the high sugar and energy content and the lack of dietary fiber of orange juice, the nutritional advice is to opt for the whole fruit over the juice, to limit daily consumption of fruit juice to one serving and to dilute the juice with water [14]. A randomized crossover study of 10 healthy subjects under regular diet comparing a crystal light lemonade beverage and two low-calorie orange juice beverages noted a higher urine pH as the only significant change between the groups when participants consumed Kroger low-calorie orange juice beverage [57]. However, citrate excretion, a major urinary inhibitor of calcium oxalate stone formation, did not significantly differ between the groups.…”
Section: Fruit Juices and Fruit Juice Beveragesmentioning
confidence: 99%
“…However, citrate excretion, a major urinary inhibitor of calcium oxalate stone formation, did not significantly differ between the groups. Moreover, concerns over health risks associated especially with overconsumption and with certain artificial colorings, preservatives, sweeteners and additives, such as ascorbic acid and calcium, severely limit the health benefit of these beverages for kidney stone formers [57,58]. Compared to orange juice, lemon and lime juices were found to have higher citrate concentrations [61].…”
Section: Fruit Juices and Fruit Juice Beveragesmentioning
confidence: 99%
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“…An ideal, daily diet should consist of fruits and vegetables for magnesium, low calorie orange juice for citrate, and to be mindful of oxalate-rich food intake [46].…”
Section: Diet Nutrition Obesitymentioning
confidence: 99%