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NOW Supplements Vitamin C Crystals
SCIENTIFIC SCORE
Possibly Effective
Based on 2 Researches
7.5
USERS' SCORE
Good
Based on 3 Reviews
8.4
Supplement Facts
Serving Size:  1/4 Level Teaspoon (1.1 g)
Amount Per Serving
%DV
Vitamin C (Ascorbic Acid)
1.1 g (1,100 mg) 
1222% 

Top Medical Research Studies

8
Vitamin C aids omeprazole therapy
Antioxidant pre-treatment prevents omeprazole-induced toxicity in an in vitro model of infectious gastritis.
Moderate relevance to reflux treatment
We aimed to understand how Vitamin C could help with the toxicity caused by omeprazole, a common treatment for conditions like gastroesophageal reflux disease (GERD) and gastritis. During our study, we examined gastric cells from rabbits to see how Vitamin C, alongside other antioxidants, could protect these cells from damage caused by omeprazole.

We found that both omeprazole and another thiol-oxidant, monochloramine, significantly reduced cell viability. Interestingly, the toxicity from omeprazole occurred independently from monochloramine. However, we observed that using Vitamin C effectively protected the gastric cells from this injury, maintaining their function without interfering with omeprazole's intended effects.

This suggests that incorporating Vitamin C into treatment plans for people using proton pump inhibitors (PPIs) like omeprazole could be beneficial. Ultimately, our research highlights the potential of using antioxidants to mitigate the adverse effects often associated with medication for reflux and related conditions.
Read More
7
Antioxidants may reduce cancer risk
Dietary antioxidant and mineral intake in humans is associated with reduced risk of esophageal adenocarcinoma but not reflux esophagitis or Barrett's esophagus.
Limited isolation of vitamin C effects
We studied how antioxidants, particularly vitamin C, relate to reflux esophagitis and esophageal adenocarcinoma, aiming to uncover potential protective effects. Through a case-control approach involving groups with reflux esophagitis, Barrett's esophagus, and esophageal adenocarcinoma, we assessed the dietary intake of antioxidants and their relationship with these conditions.

Our findings revealed that a higher overall antioxidant intake was linked to a reduced risk of esophageal adenocarcinoma. Specifically, individuals with the highest vitamin C intake had a significantly lower risk of developing this type of cancer. However, while vitamin C also appeared to reduce the risk of reflux esophagitis, we found no strong connection between vitamin C and Barrett's esophagus, nor with other antioxidants such as vitamin E, carotenoids, zinc, copper, or selenium.

This suggests that while antioxidants could play a role in lowering the risk of esophageal adenocarcinoma, they might be more influential in terms of progression rather than initiating reflux conditions. Overall, our study highlights the potential significance of dietary vitamin C in addressing reflux issues but points out limitations when it comes to other forms of esophageal disorders.
Read More

Most Useful Reviews

7.5
Health improvement noted
We have been using this for years, and it has greatly benefitted our health! If we feel a cold coming on, we increase our intake and our colds tend to be much shorter. Regular use helps with my acid reflux at night, rosacea, and even fine lines around my eyes vanished after three months. It also keeps constipation away, which is a huge plus!
Read More
8.8
Improves digestion
I've never tried vitamin C powder before, but I find it somewhat sour. Drinking one cup every hour, either before or after a meal, seems to enhance digestion and helps with my stomach condition. I have a thin, wrinkled stomach wall and suffer from reflux esophagitis, which has made my stomach uncomfortable after eating.
Read More
8
No reflux issues
I'm taking this 1-2 times a day after meals and find the effects to be good. It seems more effective than the multivitamins I've had. Previously, I was worried about reflux, but this hasn't caused any problems. Although I initially feared the sour taste, it is manageable with plenty of water. I feel it helps with my severe insomnia as well. Overall, I’m satisfied with the value for money!
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 2 Researches
7.5
  • All Researches
8
Vitamin C aids omeprazole therapy
Antioxidant pre-treatment prevents omeprazole-induced toxicity in an in vitro model of infectious gastritis.
Moderate relevance to reflux treatment
We aimed to understand how Vitamin C could help with the toxicity caused by omeprazole, a common treatment for conditions like gastroesophageal reflux disease (GERD) and gastritis. During our study, we examined gastric cells from rabbits to see how Vitamin C, alongside other antioxidants, could protect these cells from damage caused by omeprazole.

We found that both omeprazole and another thiol-oxidant, monochloramine, significantly reduced cell viability. Interestingly, the toxicity from omeprazole occurred independently from monochloramine. However, we observed that using Vitamin C effectively protected the gastric cells from this injury, maintaining their function without interfering with omeprazole's intended effects.

This suggests that incorporating Vitamin C into treatment plans for people using proton pump inhibitors (PPIs) like omeprazole could be beneficial. Ultimately, our research highlights the potential of using antioxidants to mitigate the adverse effects often associated with medication for reflux and related conditions.
Read More
7
Antioxidants may reduce cancer risk
Dietary antioxidant and mineral intake in humans is associated with reduced risk of esophageal adenocarcinoma but not reflux esophagitis or Barrett's esophagus.
Limited isolation of vitamin C effects
We studied how antioxidants, particularly vitamin C, relate to reflux esophagitis and esophageal adenocarcinoma, aiming to uncover potential protective effects. Through a case-control approach involving groups with reflux esophagitis, Barrett's esophagus, and esophageal adenocarcinoma, we assessed the dietary intake of antioxidants and their relationship with these conditions.

Our findings revealed that a higher overall antioxidant intake was linked to a reduced risk of esophageal adenocarcinoma. Specifically, individuals with the highest vitamin C intake had a significantly lower risk of developing this type of cancer. However, while vitamin C also appeared to reduce the risk of reflux esophagitis, we found no strong connection between vitamin C and Barrett's esophagus, nor with other antioxidants such as vitamin E, carotenoids, zinc, copper, or selenium.

This suggests that while antioxidants could play a role in lowering the risk of esophageal adenocarcinoma, they might be more influential in terms of progression rather than initiating reflux conditions. Overall, our study highlights the potential significance of dietary vitamin C in addressing reflux issues but points out limitations when it comes to other forms of esophageal disorders.
Read More

User Reviews

USERS' SCORE
Good
Based on 3 Reviews
8.4
  • All Reviews
  • Positive Reviews
  • Negative Reviews
7.5
Health improvement noted
We have been using this for years, and it has greatly benefitted our health! If we feel a cold coming on, we increase our intake and our colds tend to be much shorter. Regular use helps with my acid reflux at night, rosacea, and even fine lines around my eyes vanished after three months. It also keeps constipation away, which is a huge plus!
Read More
8.8
Improves digestion
I've never tried vitamin C powder before, but I find it somewhat sour. Drinking one cup every hour, either before or after a meal, seems to enhance digestion and helps with my stomach condition. I have a thin, wrinkled stomach wall and suffer from reflux esophagitis, which has made my stomach uncomfortable after eating.
Read More
8
No reflux issues
I'm taking this 1-2 times a day after meals and find the effects to be good. It seems more effective than the multivitamins I've had. Previously, I was worried about reflux, but this hasn't caused any problems. Although I initially feared the sour taste, it is manageable with plenty of water. I feel it helps with my severe insomnia as well. Overall, I’m satisfied with the value for money!
Read More
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