Overview

SCIENTIFIC SCORE
Questionable
Based on 8 Researches
6.9
USERS' SCORE
Good
Based on 8 Reviews
8.6
Supplement Facts
Serving Size: 1/2 Level Teaspoon (approx. 1.9 g)
Amount Per Serving
%DV
Vitamin C (from Sodium Ascorbate)
1.67 g (1,670 mg
1856%
Sodium (from Sodium Ascorbate)
210 mg
9%

Top Medical Research Studies

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
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
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

9.5
Safe for family
Vitamin C is safe for those with kidney stones, as this format can be diluted for children. Although the taste in water is less appealing, it’s reassuring for my mother’s kidney issues.
Read More
9.5
Best value
An excellent long-lasting vitamin C form that’s much safer than calcium types linked to kidney stones. It’s also more affordable than liposomal variants. Dosage must be carefully managed to avoid laxative effects.
Read More
9.5
Adjustable dosage
I chose this vitamin C due to its non-acidic nature, reducing the risk of kidney stones. There are no artificial sweeteners, and it allows easy dosage adjustments. Now Foods is a trusted brand.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 8 Researches
6.9
  • All Researches
9.5
No connection between IVC and stones
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
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
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
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
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.
Read More

User Reviews

USERS' SCORE
Good
Based on 8 Reviews
8.6
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Safe for family
Vitamin C is safe for those with kidney stones, as this format can be diluted for children. Although the taste in water is less appealing, it’s reassuring for my mother’s kidney issues.
Read More
9.5
Best value
An excellent long-lasting vitamin C form that’s much safer than calcium types linked to kidney stones. It’s also more affordable than liposomal variants. Dosage must be carefully managed to avoid laxative effects.
Read More
9.5
Adjustable dosage
I chose this vitamin C due to its non-acidic nature, reducing the risk of kidney stones. There are no artificial sweeteners, and it allows easy dosage adjustments. Now Foods is a trusted brand.
Read More
8.8
Non-stone forming
Non-stone forming form of vitamin C, convenient to dose, though not suitable for travel.
Read More
9.5
Chlorine removal
This affordable form of vitamin C is great for everyone and effectively removes chlorine when added to water. It’s non-stone forming, making it safe to use with meals.
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.

Sodium ascorbate is the sodium salt of ascorbic acid, commonly known as vitamin C. It is often used as a dietary supplement and food preservative due to its antioxidant properties. Unlike ascorbic acid, sodium ascorbate is better tolerated by individuals experiencing gastrointestinal discomfort from acidic forms of vitamin C, making it a popular choice for those looking to increase their vitamin C intake without the potential for stomach upset.

Sodium ascorbate serves a variety of functions beyond supplementation. It can act as a food preservative by inhibiting oxidation, thereby prolonging shelf life and maintaining the quality of packaged foods. Additionally, it is often used in cosmetic formulations for its skin-beneficial properties, including reducing oxidative stress and promoting collagen synthesis. When considering sodium ascorbate, it’s essential to consult with a healthcare provider, particularly if you have specific dietary needs or medical conditions that could be affected by sodium intake.

There is limited research on the effects of sodium ascorbate specifically in the prevention or treatment of kidney stones. Sodium ascorbate is a form of vitamin C, which can help to boost immunity and overall health. Some studies suggest that certain forms of vitamin C might play a role in reducing oxalate levels in the urine; high levels of oxalate can lead to the formation of some types of kidney stones. However, it's essential to approach vitamin supplementation cautiously, as excessive doses of vitamin C, including sodium ascorbate, may actually increase the risk of kidney stones due to increased oxalate production in the body.

According to recent research, vitamin C may play a significant role in reducing the risk of kidney stones, especially when consumed as part of a balanced diet. A study utilizing data from the National Health and Nutrition Examination Survey (NHANES) indicates that individuals who consume higher levels of antioxidants, particularly vitamin C, have lower odds of forming kidney stones ([1]). Another investigation found that moderate daily intake of vitamin C (between 60 to 110 mg) is associated with a decreased risk of kidney stone formation ([3]). However, the benefits of vitamin C are not universally impactful; high doses of vitamin C supplements can potentially increase the risk, particularly in men, highlighting the need for moderation ([4]).

While dietary intake of vitamin C appears promising, it's crucial to note that excessive supplementation may have adverse effects. Research indicates that while dietary vitamin C does not show a connection with kidney stones in men or women, supplementing with high doses may pose risks for men specifically ([6]). As such, it's recommendable to rely on food sources rather than high-dose supplements to reduce the risk of kidney stones. Ongoing studies are needed to further unravel this intricate relationship, making it important to consult with a healthcare professional regarding vitamin C intake, especially for those with a history of kidney stones.

Users have reported a variety of improvements in symptoms when using this specific form of vitamin C, particularly regarding kidney health and overall wellness. Many have noted its non-acidic nature, which reduces the risk of kidney stones while still providing beneficial health effects. For instance, one user mentioned that the vitamin C powder is non-stone forming, allowing them to use it with meals without worry (Read Review). Others highlighted that the sodium form of the supplement may actually assist in removing kidney stones, adding an extra layer of benefit to their health regimen (Read Review).

Additionally, many reviewers indicated an overall improvement in their health, particularly related to immunity and cold symptoms. One family reported feeling healthier and experiencing fewer complications from cold symptoms since incorporating this vitamin C into their routine (Read Review). While individual results may vary, it’s evident that this vitamin C formulation is seen as a safe and effective option for many users, particularly those concerned with kidney health and immunity.

Based on user reviews, many individuals have found this specific vitamin C formulation to be a safe and effective option for combining with other supplements while managing kidney stone concerns. Users have reported its non-acidic nature as a significant factor in reducing the risk of stone formation, making it preferable compared to calcium-based vitamin C options, which are associated with increased kidney stone risks (Read Review). Moreover, the sodium form of this vitamin is also noted for potentially assisting in the removal of kidney stones, adding further benefits when integrated into an overall health regimen (Read Review).

Users highlighted that this vitamin C can be easily dosed and adjusted, with several mentioning it can be safely combined with meals and other supplements without negative effects on kidney health (Read Review). The overall sentiment is that when taken thoughtfully and within recommended dosages, this vitamin C powder complements other supplements well, while remaining particularly user-friendly for families and individuals with kidney concerns (Read Review).

Research suggests that an optimal daily dose of vitamin C, which includes its form as Sodium Ascorbate, for potentially reducing the risk of kidney stones ranges from 60 to 110 mg. Individuals within this range significantly lower their chances of stone formation, while those exceeding this amount may still see benefits but should be cautious, as excessive intake could lead to increased risks. A study incorporated data from thousands of participants and highlighted that higher vitamin C intake is inversely related to kidney stone formation risk, particularly in those consuming within this moderate range [3].

9.5
Chlorine removal
This affordable form of vitamin C is great for everyone and effectively removes chlorine when added to water. It’s non-stone forming, making it safe to use with meals.
9.5
Convenient powder
This superb vitamin C powder is easy to adjust for both children and adults. Its sodium form reportedly helps remove kidney stones, making it beneficial for health.
7.5
Less painful symptoms
This extra-large vitamin C package lasts long and is well-absorbed without stressing the kidneys. My family feels healthier with fewer complications from cold symptoms. I’ve not experienced any allergies or rashes.
9.5
Best value
An excellent long-lasting vitamin C form that’s much safer than calcium types linked to kidney stones. It’s also more affordable than liposomal variants. Dosage must be carefully managed to avoid laxative effects.
9.5
Safe for family
Vitamin C is safe for those with kidney stones, as this format can be diluted for children. Although the taste in water is less appealing, it’s reassuring for my mother’s kidney issues.
8
CDAI may reduce kidney stones
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.
8
Vitamin C may reduce kidney stones
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
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.
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.

References

  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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.
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