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NOW Supplements Vitamin D-3 1000 IU
SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8
USERS' SCORE
Good
Based on 3 Reviews
8.6
Supplement Facts
Serving Size: 1 Chewable Tablet
Amount Per Serving
%DV
Vitamin D3 (as Cholecalciferol) (from Lanolin)
25 mcg (1,000 IU)
125%

Top Medical Research Studies

8
Calcium and vitamin D3 treatment effective
ECG changes in a 25-year-old woman with hypocalcemia due to hypoparathyroidism. Hypocalcemia mimicking acute myocardial infarction.
Adjusted relevance score due to combination treatment
We explored the case of a 25-year-old woman who experienced chest pain and ECG changes typically associated with a heart attack. After undergoing cardiac catheterization, doctors found her coronary arteries to be normal but noted impaired left ventricular performance.

Further tests revealed she had primary hypoparathyroidism leading to low calcium levels, or hypocalcemia. To address this, she was treated with calcium and vitamin D3 supplements, which significantly improved her condition and alleviated her symptoms.

Although she eventually remained symptom-free, some ECG repolarization disturbances persisted. This case provides important insights into how low calcium levels can mimic acute myocardial infarction and highlights the effective role of vitamin D3 and calcium in alleviating related chest pain.
Read More
8
Vitamin D3's Heart Impact
Non-invasive quick diagnosis of cardiovascular problems from visible and invisible abnormal changes with increased cardiac troponin I appearing on cardiovascular representation areas of the eyebrows, left upper lip, etc. of the face & hands: beneficial manual stimulation of hands for acute anginal chest pain, and important factors in safe, effective treatment.
Limited impact on chest pain
We explored how vitamin D3 plays a role in managing chest pain, particularly in relation to various cardiovascular health indicators. Our investigation emphasizes the significance of optimal vitamin D3 dosage; notably, 400 IU proves beneficial for heart health. However, we also highlighted the potential risks associated with higher doses, such as the commonly used 2000 IU, which can be detrimental.

While vitamin D3 shows promise for overall wellness, its direct impact on alleviating chest pain remains less clear. The study examines visible and invisible changes on the face that suggest cardiovascular issues, with a focus on areas like the eyebrows and left upper lip. However, there’s no conclusive evidence to suggest a marked improvement in chest pain solely from vitamin D3 treatment.

Overall, while maintaining adequate vitamin D3 levels is crucial for heart health, relying on it exclusively to relieve chest pain doesn't seem fully supported by our findings. The emphasis is on a comprehensive approach, combining dietary supplements with other medical interventions for heart conditions.
Read More

Most Useful Reviews

9.5
Reduced joint pain
My joints have stopped crunching and the pain has significantly decreased. After suffering from various pains, I was relieved to find no underlying issues upon testing. By three months of taking the supplement, I've hardly any pain, except for some remaining discomfort in my shoulder joint.
Read More
9
Family-friendly vitamin
This is an excellent vitamin D for the entire family. My children take it willingly, and the adults enjoy it even more. We take it consistently from September to May since it’s essential in St. Petersburg. The dosage is suitable for our region, and my pain has lessened considerably.
Read More
8.8
Immune support
Vitamin D deficiency caused severe fatigue and muscle pain for me. My levels were at 6, well below the norm of 30. The doctor advised me to take Vitamin D3 at 1000 IU for life, particularly as 85% of our population is deficient. It helps maintain immunity. After two months, I've noticed improvements.
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8
8
Vitamin D3's Heart Impact
Non-invasive quick diagnosis of cardiovascular problems from visible and invisible abnormal changes with increased cardiac troponin I appearing on cardiovascular representation areas of the eyebrows, left upper lip, etc. of the face & hands: beneficial manual stimulation of hands for acute anginal chest pain, and important factors in safe, effective treatment.
Limited impact on chest pain
We explored how vitamin D3 plays a role in managing chest pain, particularly in relation to various cardiovascular health indicators. Our investigation emphasizes the significance of optimal vitamin D3 dosage; notably, 400 IU proves beneficial for heart health. However, we also highlighted the potential risks associated with higher doses, such as the commonly used 2000 IU, which can be detrimental.

While vitamin D3 shows promise for overall wellness, its direct impact on alleviating chest pain remains less clear. The study examines visible and invisible changes on the face that suggest cardiovascular issues, with a focus on areas like the eyebrows and left upper lip. However, there’s no conclusive evidence to suggest a marked improvement in chest pain solely from vitamin D3 treatment.

Overall, while maintaining adequate vitamin D3 levels is crucial for heart health, relying on it exclusively to relieve chest pain doesn't seem fully supported by our findings. The emphasis is on a comprehensive approach, combining dietary supplements with other medical interventions for heart conditions.
Read More
8
Calcium and vitamin D3 treatment effective
ECG changes in a 25-year-old woman with hypocalcemia due to hypoparathyroidism. Hypocalcemia mimicking acute myocardial infarction.
Adjusted relevance score due to combination treatment
We explored the case of a 25-year-old woman who experienced chest pain and ECG changes typically associated with a heart attack. After undergoing cardiac catheterization, doctors found her coronary arteries to be normal but noted impaired left ventricular performance.

Further tests revealed she had primary hypoparathyroidism leading to low calcium levels, or hypocalcemia. To address this, she was treated with calcium and vitamin D3 supplements, which significantly improved her condition and alleviated her symptoms.

Although she eventually remained symptom-free, some ECG repolarization disturbances persisted. This case provides important insights into how low calcium levels can mimic acute myocardial infarction and highlights the effective role of vitamin D3 and calcium in alleviating related chest pain.
Read More

User Reviews

USERS' SCORE
Good
Based on 3 Reviews
8.6
9.5
Reduced joint pain
My joints have stopped crunching and the pain has significantly decreased. After suffering from various pains, I was relieved to find no underlying issues upon testing. By three months of taking the supplement, I've hardly any pain, except for some remaining discomfort in my shoulder joint.
Read More
9
Family-friendly vitamin
This is an excellent vitamin D for the entire family. My children take it willingly, and the adults enjoy it even more. We take it consistently from September to May since it’s essential in St. Petersburg. The dosage is suitable for our region, and my pain has lessened considerably.
8.8
Immune support
Vitamin D deficiency caused severe fatigue and muscle pain for me. My levels were at 6, well below the norm of 30. The doctor advised me to take Vitamin D3 at 1000 IU for life, particularly as 85% of our population is deficient. It helps maintain immunity. After two months, I've noticed improvements.
Read More
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