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NOW Supplements Vitamin C Crystals
SCIENTIFIC SCORE
Very Likely Ineffective
Based on 1 Research
2
USERS' SCORE
Good
Based on 5 Reviews
8.2
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

2
Vitamin C ineffective against nausea
The Role of hCG and Histamine in Emesis Gravidarum and Use of a Chewing Gum Containing Vitamin C as a Treatment Option: A Double-Blinded, Randomized, Controlled Trial.
Vitamin C's isolated effects unclear
We explored the effects of vitamin C as a treatment for nausea and vomiting in pregnancy, also known as emesis gravidarum. Our study involved 111 participants, who were given either vitamin C-containing chewing gum, a placebo, or no treatment at all. We monitored them over two follow-up visits in early pregnancy to assess their symptoms.

While we measured various factors that could influence nausea—including hormone levels like hCG and DAO—our findings showed that the chewing gum did not effectively reduce nausea symptoms compared to the placebo or no treatment. Specifically, the vitamin C gum was not associated with any significant alleviation of nausea or vomiting.

Interestingly, we found that elevated levels of hCG were linked to increased nausea severity. In contrast, higher levels of DAO appeared to have a protective effect against symptoms. Additionally, elevated thyroxine and pyridoxine levels correlated with worsened nausea.

Overall, while vitamin C is often highlighted for its health benefits, our results suggest it does not play a significant role in treating nausea during pregnancy. This study highlights the complexities behind nausea in pregnancy, indicating that further research is necessary to uncover effective treatment options.
Read More

Most Useful Reviews

9.5
Nausea relief experienced
I purchased this product to make liposomal Vitamin C, as it can enhance bioavailability. After preparing it, I took a tablespoon and felt significantly better within two hours. The persistent nausea I had suffered from after a bout with the flu vanished, and my mood improved notably. I will be encouraging others to try this, as it appears to be effective for alleviating nausea. Just be cautious about exposing your teeth to acidic Vitamin C, as it may harm your enamel.
Read More
9.5
No nausea noted
Excellent vitamin C format. It's easy to drink and did not cause any nausea or stomach irritation. The volume is sufficient for long-term use.
Read More
9.5
No side effects
An excellent product that I tolerated well! There were no side effects, unlike other vitamins that caused nausea. The composition is perfect with pure vitamin, free from sugar, dyes, and impurities.
Read More

Medical Researches

SCIENTIFIC SCORE
Very Likely Ineffective
Based on 1 Research
2
  • All Researches
2
Vitamin C ineffective against nausea
The Role of hCG and Histamine in Emesis Gravidarum and Use of a Chewing Gum Containing Vitamin C as a Treatment Option: A Double-Blinded, Randomized, Controlled Trial.
Vitamin C's isolated effects unclear
We explored the effects of vitamin C as a treatment for nausea and vomiting in pregnancy, also known as emesis gravidarum. Our study involved 111 participants, who were given either vitamin C-containing chewing gum, a placebo, or no treatment at all. We monitored them over two follow-up visits in early pregnancy to assess their symptoms.

While we measured various factors that could influence nausea—including hormone levels like hCG and DAO—our findings showed that the chewing gum did not effectively reduce nausea symptoms compared to the placebo or no treatment. Specifically, the vitamin C gum was not associated with any significant alleviation of nausea or vomiting.

Interestingly, we found that elevated levels of hCG were linked to increased nausea severity. In contrast, higher levels of DAO appeared to have a protective effect against symptoms. Additionally, elevated thyroxine and pyridoxine levels correlated with worsened nausea.

Overall, while vitamin C is often highlighted for its health benefits, our results suggest it does not play a significant role in treating nausea during pregnancy. This study highlights the complexities behind nausea in pregnancy, indicating that further research is necessary to uncover effective treatment options.
Read More

User Reviews

USERS' SCORE
Good
Based on 5 Reviews
8.2
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Nausea relief experienced
I purchased this product to make liposomal Vitamin C, as it can enhance bioavailability. After preparing it, I took a tablespoon and felt significantly better within two hours. The persistent nausea I had suffered from after a bout with the flu vanished, and my mood improved notably. I will be encouraging others to try this, as it appears to be effective for alleviating nausea. Just be cautious about exposing your teeth to acidic Vitamin C, as it may harm your enamel.
Read More
9.5
No nausea noted
Excellent vitamin C format. It's easy to drink and did not cause any nausea or stomach irritation. The volume is sufficient for long-term use.
9.5
No side effects
An excellent product that I tolerated well! There were no side effects, unlike other vitamins that caused nausea. The composition is perfect with pure vitamin, free from sugar, dyes, and impurities.
5
Severe nausea experienced
The ascorbic acid form of vitamin was not suitable for me. It was hard to drink and caused severe nausea, regardless of food intake.
3.5
Nausea issues reported
The megadoses have an effect on fatigue recovery but also caused gas, heartburn, and nausea. I bought liposomal vitamin due to heartburn and nausea issues, but I need to invest more to switch to liposomes.
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