We examined the relationship between vitamin C intake and the risk of developing kidney stones in a large cohort. This study included a significant number of participants: 156,735 women from the Nurses' Health Studies and 40,536 men from the Health Professionals Follow-up Study.
Our findings revealed that total and supplemental vitamin C intake was linked to a higher risk of kidney stones in men, but there was no such association evident in women. Specifically, among men, those who consumed higher amounts of vitamin C had greater likelihoods of developing stones when compared to those with lower intakes.
However, dietary vitamin C did not show a connection with kidney stones in either men or women. This suggests that while supplements may pose risks for men, dietary sources of vitamin C might not have the same impact. Overall, the study indicates that we should be cautious about high vitamin C supplement consumption, especially for men, while highlighting that dietary intake appears safe.
Read More
9.5
No connection between IVC and stones
No Reported Renal Stones with Intravenous Vitamin C Administration: A Prospective Case Series Study.
We set out to investigate whether high doses of intravenous vitamin C (IVC) could influence the formation of kidney stones. Our study involved 157 adult patients receiving IVC therapy at Integrated Health Options clinic over a 12-month period.
Throughout the study, we conducted regular check-ins with patients, specifically asking about any kidney stones they might have experienced, along with monitoring their renal function through blood tests. Despite some patients having a prior history of kidney stones, we found that none reported developing new stones during the study.
Interestingly, we also noted that the majority of participants showed stable renal function, as indicated by consistent serum creatinine levels and estimated glomerular filtration rates (eGFR). In summary, our findings suggest that IVC therapy does not appear to be associated with an increased risk of kidney stones.
Read More
8
Vitamin C may reduce kidney stones
Evaluating the American Urologic Association (AUA) dietary recommendations for kidney stone management using the National Health And Nutritional Examination Survey (NHANES).
We explored the dietary habits of individuals from the National Health and Nutritional Examination Survey (NHANES) to see how certain foods might influence kidney stone formation.
Our focus was particularly on vitamin C and its potential role in preventing these painful stones. We looked at a diverse group of nearly 17,000 people, analyzing their dietary intake alongside their kidney health over a span of several years.
Interestingly, our findings highlighted a connection between higher vitamin C intake and reduced kidney stone risk. Specifically, we noted that individuals consuming 60 to 110 mg of vitamin C daily had a lower chance of forming stones, with an even greater protective effect observed in those exceeding that amount.
While we didn't find significant associations with many other dietary elements, our results suggest that increasing vitamin C intake might be beneficial. This points towards a need for further research on how vitamin C and other dietary factors interact in the context of kidney stone prevention.
Read More
Most Useful Reviews
9
No kidney stones
4 people found this helpful
Great, easily absorbable Vitamin C that doesn't cause kidney stones! I have metabolism issues and am unable to process many synthetic vitamins. This product is one of the few I can take without the risk of kidney stones or detox problems. Its dosage is higher than others, making it more affordable. A fantastic option for those needing a natural, absorbable Vitamin C.
Read More
9
Gentle on kidneys
This is the best Vitamin C available. Unlike ascorbic acid, it is gentle on the kidneys and does not cause discomfort.
Read More
7.5
Health improvement
1 people found this helpful
My husband has kidney problems, and after two weeks of use, his health is improving. I will definitely buy this again.
We set out to investigate whether high doses of intravenous vitamin C (IVC) could influence the formation of kidney stones. Our study involved 157 adult patients receiving IVC therapy at Integrated Health Options clinic over a 12-month period.
Throughout the study, we conducted regular check-ins with patients, specifically asking about any kidney stones they might have experienced, along with monitoring their renal function through blood tests. Despite some patients having a prior history of kidney stones, we found that none reported developing new stones during the study.
Interestingly, we also noted that the majority of participants showed stable renal function, as indicated by consistent serum creatinine levels and estimated glomerular filtration rates (eGFR). In summary, our findings suggest that IVC therapy does not appear to be associated with an increased risk of kidney stones.
Read More
8
CDAI may reduce kidney stones
High composite dietary antioxidant index is associated with reduced risk of kidney stones: a cross-sectional analysis of NHANES 2007-2020.
We examined the relationship between dietary antioxidant intake, particularly vitamin C, and the risk of developing kidney stones. Utilizing data from the National Health and Nutrition Examination Survey, we found that individuals with higher levels of antioxidants, as indicated by the Composite Dietary Antioxidant Index (CDAI), had lower odds of forming kidney stones.
Stone formers, those who have experienced kidney stones, typically had a lower CDAI, showcasing significant differences based on gender. An interesting aspect of our findings was that vitamin C stood out as having the strongest negative correlation with kidney stones, suggesting that increased intake may be beneficial.
The results indicated that those in moderate and high CDAI groups had reduced odds of experiencing kidney stones compared to the lowest group. This was reflected in the odds ratios, which showed a significant decrease for those with higher antioxidant consumption. Therefore, it seems that a diet rich in antioxidants, particularly vitamin C, could play a role in lowering kidney stone risks.
However, while our findings are promising, we emphasize the need for more in-depth cohort studies to further investigate this potential connection and confirm its causal nature.
Read More
8
Vitamin C may reduce kidney stones
Evaluating the American Urologic Association (AUA) dietary recommendations for kidney stone management using the National Health And Nutritional Examination Survey (NHANES).
We explored the dietary habits of individuals from the National Health and Nutritional Examination Survey (NHANES) to see how certain foods might influence kidney stone formation.
Our focus was particularly on vitamin C and its potential role in preventing these painful stones. We looked at a diverse group of nearly 17,000 people, analyzing their dietary intake alongside their kidney health over a span of several years.
Interestingly, our findings highlighted a connection between higher vitamin C intake and reduced kidney stone risk. Specifically, we noted that individuals consuming 60 to 110 mg of vitamin C daily had a lower chance of forming stones, with an even greater protective effect observed in those exceeding that amount.
While we didn't find significant associations with many other dietary elements, our results suggest that increasing vitamin C intake might be beneficial. This points towards a need for further research on how vitamin C and other dietary factors interact in the context of kidney stone prevention.
Read More
8
Vitamin C formulation lowers oxalate
Vitamin C with metabolites reduce oxalate levels compared to ascorbic acid: a preliminary and novel clinical urologic finding.
We examined how different forms of vitamin C affect kidney stones, specifically looking at hyperoxaluria, a key risk factor for stone formation. In our study, conducted as a randomized, double-blind, crossover trial, we compared the effects of traditional ascorbic acid with a formulation containing vitamin C and metabolites, known as Ester-C.
Our findings revealed that Ester-C significantly lowered urine oxalate levels compared to regular ascorbic acid. This is exciting because higher oxalate levels in urine can lead to kidney stones, and finding a formulation that mitigates this risk is important.
Although this study presents promising results, it's essential to note that further evaluation is necessary to fully understand these findings. We believe this is a novel insight into the potential of vitamin C to help prevent kidney stones, and we look forward to additional research in this area.
Read More
7
Vitamin C's complex impact revealed
Multivitamins co-intake can reduce the prevalence of kidney stones: a large-scale cross-sectional study.
We sought to understand how varying levels of vitamin C, among other vitamins, affect the prevalence of kidney stones. Our research relied on comprehensive data from NHANES, which allowed us to evaluate the relationships between nine common vitamins and kidney stone conditions.
Through logistic regression and detailed cluster analysis, we discovered that high vitamin C intake can have a complex impact. While individuals with very high vitamin B6 and D levels showed a decrease in kidney stone issues, vitamin C presented a different picture. Initially, as vitamin C intake increased, the risk for kidney stones seemed to drop. However, after a certain threshold, that benefit waned, and we observed a potential increase in risk instead.
This means that while vitamin C can be beneficial in moderation, too much might not be the best for kidney health. Furthermore, we found that when combined with other vitamins, particularly in specific patterns, the protective effects against kidney stones enhanced, suggesting that overall dietary balance is crucial.
Our findings shed light on a nuanced relationship between vitamin C and kidney stones, emphasizing the importance of considering not just individual vitamins, but how they work together.
Great, easily absorbable Vitamin C that doesn't cause kidney stones! I have metabolism issues and am unable to process many synthetic vitamins. This product is one of the few I can take without the risk of kidney stones or detox problems. Its dosage is higher than others, making it more affordable. A fantastic option for those needing a natural, absorbable Vitamin C.
Read More
9
Gentle on kidneys
This is the best Vitamin C available. Unlike ascorbic acid, it is gentle on the kidneys and does not cause discomfort.
Read More
7.5
Health improvement
1 people found this helpful
My husband has kidney problems, and after two weeks of use, his health is improving. I will definitely buy this again.
Read More
7.5
Less kidney strain
This Vitamin C appears to be easier on the kidneys and also includes bioflavonoids. Top quality!
Read More
6
Kidney-friendly vitamin
Concentrated Vitamin C is completely natural. It is absorbed more slowly than synthetic forms but is gentler on the kidneys and aids in excretion.
Read More
Frequently Asked Questions
Kidney stones are hard deposits made of minerals and salts that form inside your kidneys. While they can vary in size from tiny particles to large stones, they all begin as crystallized substances that develop when urine contains more crystal-forming substances than the fluid in your urine can dilute. When the crystals stick together, they can form stones, which may cause severe pain, especially when they pass through the urinary tract. Common types of kidney stones include calcium stones, struvite stones, uric acid stones, and cystine stones.
The symptoms of kidney stones can include sharp pain in the side and back, pain during urination, pink or red urine, and frequent urination. Various factors can increase the risk of developing kidney stones, including dehydration, certain dietary choices, and genetic predisposition. Preventing kidney stones often involves drinking plenty of water, avoiding excessive salt and animal protein, and ensuring a balanced intake of calcium. For those who suffer from kidney stones, a medical evaluation may be necessary to determine the best management and preventive strategies.
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that plays a critical role in numerous bodily functions. As an essential nutrient, it contributes to the growth and repair of tissues in the body, and it is vital for the production of collagen, an important protein that helps maintain skin, cartilage, tendons, ligaments, and blood vessels. Additionally, Vitamin C acts as a powerful antioxidant, which means it helps combat free radicals—unstable molecules that can cause oxidative stress and contribute to various chronic diseases.
Moreover, Vitamin C enhances iron absorption from plant-based foods, making it a vital component for those following vegetarian or vegan diets. While many people get sufficient Vitamin C from a well-balanced diet that includes fruits and vegetables like oranges, strawberries, kiwi, broccoli, and bell peppers, some individuals might require supplementation. It's generally recommended to stay within the daily intake guidelines, as excessive consumption can lead to gastrointestinal disturbances. Overall, Vitamin C is not just a skincare celebrity—it's a fundamental part of maintaining overall health and well-being.
Based on user reviews, individuals taking this supplement for kidney stones report varying timelines for seeing results. One user noted noticeable improvement in their husband's health after just two weeks of using the product, suggesting that some users may begin to experience benefits relatively quickly (Read Review). Other users did not specify an exact timeframe but emphasized the gentle nature of the supplement on the kidneys, indicating that it may be well-tolerated and effective over a consistent period of use.
Furthermore, users highlighted that this Vitamin C is easier on the kidneys due to its natural formulation and higher absorption rates, which could contribute to quicker results compared to synthetic alternatives (Read Review). While individual responses may vary, it's clear that regular use over weeks could lead to significant health improvements for those concerned about kidney stones.
Recent studies suggest that vitamin C has a complex relationship with kidney stone formation. Research indicates that higher dietary antioxidant intake, particularly vitamin C, is correlated with a lower risk of developing kidney stones. For instance, one study found that individuals consuming between 60 and 110 mg of vitamin C daily had a reduced risk of stone formation, with protective effects increasing at higher intakes [3]. However, caution is advised, as excessive vitamin C supplementation could lead to increased stone risk in men, according to various investigations [4], [6].
While the benefits of vitamin C from dietary sources appear substantial, the same cannot be said for supplements, which seem to heighten risk for certain individuals. Furthermore, different forms of vitamin C, like Ester-C, may reduce urine oxalate levels—a key factor in stone creation [8]. Therefore, while moderate vitamin C intake through food may be protective against kidney stones, individuals should be cautious with supplements, especially men, to avoid an increased risk of stone formation. Overall, more research is essential to clarify these nuanced relationships and establish clearer dietary guidelines for kidney health.
Users report a range of positive improvements in their symptoms when using this Vitamin C supplement, particularly highlighting its gentleness on the kidneys. One user specifically noted a significant health improvement in their husband after just two weeks of usage, suggesting potential quick benefits for those with kidney issues (Read Review). Other users echoed similar sentiments, emphasizing that this Vitamin C formulation does not cause discomfort and is easier on the kidneys compared to synthetic alternatives (Read Review, Read Review).
Additionally, the product's higher absorption rates are praised as a key factor in promoting overall wellbeing, particularly for those sensitive to other vitamin forms (Read Review, Read Review). While individual results can vary greatly, the collective experiences of users suggest that this Vitamin C not only appeals to those with kidney concerns but could also enhance overall health when consumed regularly.
Users report positive experiences when combining this Vitamin C supplement with other supplements for managing kidney stones. Specifically, many highlight its non-synthetic nature and higher absorption rates as significant benefits, claiming it doesn't exacerbate kidney issues. For instance, one review emphasizes that this Vitamin C won't trigger kidney stones, making it a safer option for those with metabolic concerns or sensitivities to synthetic vitamins (Read Review). Additionally, users appreciate the gentle effects on the kidneys compared to conventional ascorbic acid, reinforcing its suitability for individuals looking for a more manageable supplement routine alongside other health products (Read Review).
Moreover, combined with other supplements, many users indicate that this Vitamin C can support overall renal health and improve symptoms associated with kidney problems. One user linked their husband's improved health directly to the supplement, underlining the potential benefits when integrated with other dietary measures for kidney care (Read Review). The general consensus suggests that when seeking a comprehensive approach to prevent kidney stones and maintain kidney health, this product stands out as a reliable choice that works harmoniously with other supplements (Read Review).
When it comes to managing kidney stone risks, research has highlighted optimal vitamin C intake levels that could potentially reduce the likelihood of stone formation. A study indicated that consuming between 60 to 110 mg of vitamin C daily is associated with a lower chance of developing kidney stones. Interestingly, those who exceeded that intake range experienced an even greater protective effect against stone formation [3]. However, caution is advised as vitamin C's benefits seem to wane after reaching certain thresholds, making moderation key in dietary choices [2].
Furthermore, the context in which vitamin C is consumed matters. While dietary sources of vitamin C appear to be safe and beneficial, high doses from supplements have been linked to increased kidney stone risk, particularly in men [6]. Therefore, it is wise to focus on achieving adequate vitamin C levels through food rather than supplements, to optimize kidney health without unintentionally increasing risks. Overall, maintaining a balanced intake of vitamin C through diet may support kidney stone prevention efforts effectively.
7.5
Health improvement
1 people found this helpful
My husband has kidney problems, and after two weeks of use, his health is improving. I will definitely buy this again.
6
Kidney-friendly vitamin
Concentrated Vitamin C is completely natural. It is absorbed more slowly than synthetic forms but is gentler on the kidneys and aids in excretion.
9
Gentle on kidneys
This is the best Vitamin C available. Unlike ascorbic acid, it is gentle on the kidneys and does not cause discomfort.
7.5
Less kidney strain
This Vitamin C appears to be easier on the kidneys and also includes bioflavonoids. Top quality!
9
No kidney stones
4 people found this helpful
Great, easily absorbable Vitamin C that doesn't cause kidney stones! I have metabolism issues and am unable to process many synthetic vitamins. This product is one of the few I can take without the risk of kidney stones or detox problems. Its dosage is higher than others, making it more affordable. A fantastic option for those needing a natural, absorbable Vitamin C.
8
Vitamin C may reduce kidney stones
Evaluating the American Urologic Association (AUA) dietary recommendations for kidney stone management using the National Health And Nutritional Examination Survey (NHANES).
We explored the dietary habits of individuals from the National Health and Nutritional Examination Survey (NHANES) to see how certain foods might influence kidney stone formation.
Our focus was particularly on vitamin C and its potential role in preventing these painful stones. We looked at a diverse group of nearly 17,000 people, analyzing their dietary intake alongside their kidney health over a span of several years.
Interestingly, our findings highlighted a connection between higher vitamin C intake and reduced kidney stone risk. Specifically, we noted that individuals consuming 60 to 110 mg of vitamin C daily had a lower chance of forming stones, with an even greater protective effect observed in those exceeding that amount.
While we didn't find significant associations with many other dietary elements, our results suggest that increasing vitamin C intake might be beneficial. This points towards a need for further research on how vitamin C and other dietary factors interact in the context of kidney stone prevention.
4
Vitamin C linked to kidney stones
Ascorbic Acid Supplements and Kidney Stones Incidence Among Men and Women: A systematic review and meta-analysis.
We explored the controversial relationship between vitamin C supplements, specifically ascorbic acid, and the risk of kidney stones. Our investigation included a systematic review of multiple studies up until March 2017 that looked at both men and women regarding their use of these supplements.
The findings revealed that men who took vitamin C supplements had a notably higher incidence of kidney stones compared to women. For instance, the analysis showed an increased risk in men with doses between 250 to 1499 mg per day, though higher doses (500 mg and above) did not significantly affect risk levels. Interestingly, women did not show any correlation between vitamin C intake and kidney stone formation at any dosage level examined.
Ultimately, our review suggests that while vitamin C may enhance kidney stone risk in men, it does not appear to affect women in the same way. Given these observations, more research is needed—specifically long-term studies and randomized controlled trials—to confirm these outcomes and enhance our understanding of vitamin C's role in kidney stone formation.
4
Vitamin C intake risks explored
Total, Dietary, and Supplemental Vitamin C Intake and Risk of Incident Kidney Stones.
We examined the relationship between vitamin C intake and the risk of developing kidney stones in a large cohort. This study included a significant number of participants: 156,735 women from the Nurses' Health Studies and 40,536 men from the Health Professionals Follow-up Study.
Our findings revealed that total and supplemental vitamin C intake was linked to a higher risk of kidney stones in men, but there was no such association evident in women. Specifically, among men, those who consumed higher amounts of vitamin C had greater likelihoods of developing stones when compared to those with lower intakes.
However, dietary vitamin C did not show a connection with kidney stones in either men or women. This suggests that while supplements may pose risks for men, dietary sources of vitamin C might not have the same impact. Overall, the study indicates that we should be cautious about high vitamin C supplement consumption, especially for men, while highlighting that dietary intake appears safe.
8
Vitamin C formulation lowers oxalate
Vitamin C with metabolites reduce oxalate levels compared to ascorbic acid: a preliminary and novel clinical urologic finding.
We examined how different forms of vitamin C affect kidney stones, specifically looking at hyperoxaluria, a key risk factor for stone formation. In our study, conducted as a randomized, double-blind, crossover trial, we compared the effects of traditional ascorbic acid with a formulation containing vitamin C and metabolites, known as Ester-C.
Our findings revealed that Ester-C significantly lowered urine oxalate levels compared to regular ascorbic acid. This is exciting because higher oxalate levels in urine can lead to kidney stones, and finding a formulation that mitigates this risk is important.
Although this study presents promising results, it's essential to note that further evaluation is necessary to fully understand these findings. We believe this is a novel insight into the potential of vitamin C to help prevent kidney stones, and we look forward to additional research in this area.
7
Vitamin C's complex impact revealed
Multivitamins co-intake can reduce the prevalence of kidney stones: a large-scale cross-sectional study.
We sought to understand how varying levels of vitamin C, among other vitamins, affect the prevalence of kidney stones. Our research relied on comprehensive data from NHANES, which allowed us to evaluate the relationships between nine common vitamins and kidney stone conditions.
Through logistic regression and detailed cluster analysis, we discovered that high vitamin C intake can have a complex impact. While individuals with very high vitamin B6 and D levels showed a decrease in kidney stone issues, vitamin C presented a different picture. Initially, as vitamin C intake increased, the risk for kidney stones seemed to drop. However, after a certain threshold, that benefit waned, and we observed a potential increase in risk instead.
This means that while vitamin C can be beneficial in moderation, too much might not be the best for kidney health. Furthermore, we found that when combined with other vitamins, particularly in specific patterns, the protective effects against kidney stones enhanced, suggesting that overall dietary balance is crucial.
Our findings shed light on a nuanced relationship between vitamin C and kidney stones, emphasizing the importance of considering not just individual vitamins, but how they work together.
References
Huang A, Huang W, Ye Y, Liu L, Wang H, et al. High composite dietary antioxidant index is associated with reduced risk of kidney stones: a cross-sectional analysis of NHANES 2007-2020. Nutr Res. 2024;128:60. doi:10.1016/j.nutres.2024.06.006
Zeng H, Liu Z, He Y, Chen H, He J, et al. Multivitamins co-intake can reduce the prevalence of kidney stones: a large-scale cross-sectional study. Int Urol Nephrol. 2024;56:2991. doi:10.1007/s11255-024-04021-9
Liu Kot K, Labagnara K, Kim JI, Loloi J, Gupta K, et al. Evaluating the American Urologic Association (AUA) dietary recommendations for kidney stone management using the National Health And Nutritional Examination Survey (NHANES). Urolithiasis. 2023;51:60. doi:10.1007/s00240-023-01423-9
Jiang K, Tang K, Liu H, Xu H, Ye Z, et al. Ascorbic Acid Supplements and Kidney Stones Incidence Among Men and Women: A systematic review and meta-analysis. Urol J. 2019;16:115. doi:10.22037/uj.v0i0.4275
Prier M, Carr AC, Baillie N. No Reported Renal Stones with Intravenous Vitamin C Administration: A Prospective Case Series Study. Antioxidants (Basel). 2018;7. doi:10.3390/antiox7050068
Ferraro PM, Curhan GC, Gambaro G, Taylor EN. Total, Dietary, and Supplemental Vitamin C Intake and Risk of Incident Kidney Stones. Am J Kidney Dis. 2016;67:400. doi:10.1053/j.ajkd.2015.09.005
Modi J, Modi P, Pal B, Bansal J, Kumar S, et al. Role of Vitamin C and E supplementation in reduction of serum level of renal injury marker following shock wave lithotripsy: Prospective single centre experience. Urol Ann. 2015;7:350. doi:10.4103/0974-7796.156143
Moyad MA, Combs MA, Crowley DC, Baisley JE, Sharma P, et al. Vitamin C with metabolites reduce oxalate levels compared to ascorbic acid: a preliminary and novel clinical urologic finding. Urol Nurs. 2009;29:95.