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NOW Supplements Vitamin D-3
SCIENTIFIC SCORE
Questionable
Based on 2 Researches
6.5
USERS' SCORE
Moderately Good
Based on 8 Reviews
7.9
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Vitamin D3 (as Cholecalciferol) (From Lanolin)
1,250 mcg (50,000 IU)
6250%

Top Medical Research Studies

8
Vitamin D and nausea in gastroparesis
Low Vitamin D Levels in Patients with Symptoms of Gastroparesis: Relationships with Nausea and Vomiting, Gastric Emptying and Gastric Myoelectrical Activity.
Strong link but unclear benefits.
We delved into an intriguing question: how do low vitamin D levels affect nausea in people experiencing gastroparesis, a condition that slows gastric emptying? By measuring the vitamin D levels of patients from the Gastroparesis Clinical Consortium Registry, we aimed to uncover the relationships between vitamin D, nausea, and gastric function.

Our findings revealed that over half of the patients had low vitamin D levels, specifically 56.1% of the 513 individuals studied. We observed a clear association between these low levels of vitamin D and increased experiences of nausea and vomiting. This was particularly notable in patients with delayed gastric emptying, where those with low vitamin D levels reported significantly more nausea.

While the study showed a correlation, it did not address whether supplementing with vitamin D could directly alleviate these symptoms. Instead, we found that lower vitamin D levels also related to a greater retention of food in the stomach after meals, which hints at a connection to gastric neuromuscular dysfunction. Overall, our study emphasized a noteworthy link between vitamin D and nausea but stopped short of confirming any direct treatment benefits.
Read More
5
Vitamin D, genetics, nausea link
Variation in the vitamin D receptor gene, plasma 25-hydroxyvitamin D, and risk of premenstrual symptoms.
Influence of genetics noted
We explored how vitamin D levels affect nausea and other premenstrual symptoms (PMS) while considering the influence of genetics. Our study involved 716 women between the ages of 20 and 29, who provided blood samples to measure their vitamin D status and completed questionnaires about their PMS experiences.

By classifying participants as either vitamin D sufficient or insufficient based on their plasma levels, we examined how these levels correlated with nausea, alongside a specific genetic variation in the vitamin D receptor gene. Interestingly, we found that women with the CC genotype who had low vitamin D levels were more likely to experience nausea, whereas those with the TT genotype exhibited a low likelihood of suffering from nausea under similar conditions.

Overall, we can say that vitamin D's impact on nausea does not occur in isolation; it is modified by genetic factors. This highlights the importance of considering both vitamin D status and genetic background when trying to understand the factors contributing to PMS symptoms like nausea.
Read More

Most Useful Reviews

9.5
Improved sleep
Buying this product a second time, I find it genuine and it doesn't cause any nausea or side effects like other vitamins. My husband had a deficiency and felt weak and tired. After four months of taking it weekly, his sleep improved and he feels stronger. It's essential to determine the best time to take it; he felt sleepy during the day when taken in the morning as advised by the doctor.
Read More
10
No issues
It’s sweet and gentle on my stomach, and I haven't experienced any nausea while taking it regularly.
Read More
2.5
Strong side effects
The product seems potent; initially, I experienced nausea, a headache, and itching, alongside mild diarrhoea, prompting me to stop it immediately.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 2 Researches
6.5
  • All Researches
8
Vitamin D and nausea in gastroparesis
Low Vitamin D Levels in Patients with Symptoms of Gastroparesis: Relationships with Nausea and Vomiting, Gastric Emptying and Gastric Myoelectrical Activity.
Strong link but unclear benefits.
We delved into an intriguing question: how do low vitamin D levels affect nausea in people experiencing gastroparesis, a condition that slows gastric emptying? By measuring the vitamin D levels of patients from the Gastroparesis Clinical Consortium Registry, we aimed to uncover the relationships between vitamin D, nausea, and gastric function.

Our findings revealed that over half of the patients had low vitamin D levels, specifically 56.1% of the 513 individuals studied. We observed a clear association between these low levels of vitamin D and increased experiences of nausea and vomiting. This was particularly notable in patients with delayed gastric emptying, where those with low vitamin D levels reported significantly more nausea.

While the study showed a correlation, it did not address whether supplementing with vitamin D could directly alleviate these symptoms. Instead, we found that lower vitamin D levels also related to a greater retention of food in the stomach after meals, which hints at a connection to gastric neuromuscular dysfunction. Overall, our study emphasized a noteworthy link between vitamin D and nausea but stopped short of confirming any direct treatment benefits.
Read More
5
Vitamin D, genetics, nausea link
Variation in the vitamin D receptor gene, plasma 25-hydroxyvitamin D, and risk of premenstrual symptoms.
Influence of genetics noted
We explored how vitamin D levels affect nausea and other premenstrual symptoms (PMS) while considering the influence of genetics. Our study involved 716 women between the ages of 20 and 29, who provided blood samples to measure their vitamin D status and completed questionnaires about their PMS experiences.

By classifying participants as either vitamin D sufficient or insufficient based on their plasma levels, we examined how these levels correlated with nausea, alongside a specific genetic variation in the vitamin D receptor gene. Interestingly, we found that women with the CC genotype who had low vitamin D levels were more likely to experience nausea, whereas those with the TT genotype exhibited a low likelihood of suffering from nausea under similar conditions.

Overall, we can say that vitamin D's impact on nausea does not occur in isolation; it is modified by genetic factors. This highlights the importance of considering both vitamin D status and genetic background when trying to understand the factors contributing to PMS symptoms like nausea.
Read More

User Reviews

USERS' SCORE
Moderately Good
Based on 8 Reviews
7.9
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9.5
Improved sleep
Buying this product a second time, I find it genuine and it doesn't cause any nausea or side effects like other vitamins. My husband had a deficiency and felt weak and tired. After four months of taking it weekly, his sleep improved and he feels stronger. It's essential to determine the best time to take it; he felt sleepy during the day when taken in the morning as advised by the doctor.
Read More
10
No issues
It’s sweet and gentle on my stomach, and I haven't experienced any nausea while taking it regularly.
2.5
Strong side effects
The product seems potent; initially, I experienced nausea, a headache, and itching, alongside mild diarrhoea, prompting me to stop it immediately.
0
Nausea issues
Unfortunately, I cannot take this vitamin as it gives me nausea.
9.5
No nausea
It's gentle on the stomach and does not cause nausea like other products, thanks to its gelatinous form.
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