' 
SCIENTIFIC SCORE
Questionable
Based on 2 Researches
5
USERS' SCORE
Good
Based on 9 Reviews
8.7
Supplement Facts
Serving Size: 1 Vegetable Capsule
Amount Per Serving
%DV
Vitamin D3 (as cholecalciferol)
125 mcg (5000 IU)
625%
Top Medical Research Studies
2
Vitamin D3 ineffective for CFS
Effect of intermittent vitamin D3 on vascular function and symptoms in chronic fatigue syndrome--a randomised controlled trial.
Directly tests treatment effectiveness
We conducted a thorough investigation into whether high-dose intermittent vitamin D3 could alleviate symptoms of chronic fatigue syndrome (CFS) and improve vascular health. This double-blind, randomized placebo-controlled trial involved patients meeting established criteria for CFS. Participants received either 100,000 units of vitamin D3 or a placebo every two months for six months.
Over the course of the study, we measured key outcomes such as arterial stiffness, blood pressure, cholesterol levels, and fatigue levels through various tests. Surprisingly, our findings showed that vitamin D3 treatment did not lead to any significant improvements in these areas. We observed only a slight increase in vitamin D levels in the treatment group, but this did not translate into better vascular health or reduced fatigue.
In conclusion, we honestly found that high-dose vitamin D3 did not offer any notable benefits for patients struggling with chronic fatigue syndrome. This study highlights the complexities of treating CFS and suggests that vitamin D3 may not be the solution some had hoped for.
Over the course of the study, we measured key outcomes such as arterial stiffness, blood pressure, cholesterol levels, and fatigue levels through various tests. Surprisingly, our findings showed that vitamin D3 treatment did not lead to any significant improvements in these areas. We observed only a slight increase in vitamin D levels in the treatment group, but this did not translate into better vascular health or reduced fatigue.
In conclusion, we honestly found that high-dose vitamin D3 did not offer any notable benefits for patients struggling with chronic fatigue syndrome. This study highlights the complexities of treating CFS and suggests that vitamin D3 may not be the solution some had hoped for.
Read More
8
Beta-glucan shows cognitive improvements
Yeast Beta-Glucan Supplementation with Multivitamins Attenuates Cognitive Impairments in Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
Vitamin D3 effects unclear
We conducted a randomized, double-blind, placebo-controlled trial to explore how yeast beta-glucan, along with multivitamins, affects individuals suffering from Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). In our study, 65 participants received either beta-glucan combined with vitamins and zinc or a placebo for 36 weeks.
Interestingly, while our primary focus was on beta-glucan, which was shown to significantly improve cognitive fatigue, the role of vitamin D3 within this combination was not clearly established. This makes it challenging to directly assess the impact of vitamin D3 alone on chronic fatigue syndrome outcomes.
Overall, we discovered that beta-glucan supplementation could positively influence cognitive fatigue, offering promise for future research on nutritional support in ME/CFS patients. However, definitive conclusions about vitamin D3's effectiveness remain inconclusive due to the combined nature of the treatment.
Interestingly, while our primary focus was on beta-glucan, which was shown to significantly improve cognitive fatigue, the role of vitamin D3 within this combination was not clearly established. This makes it challenging to directly assess the impact of vitamin D3 alone on chronic fatigue syndrome outcomes.
Overall, we discovered that beta-glucan supplementation could positively influence cognitive fatigue, offering promise for future research on nutritional support in ME/CFS patients. However, definitive conclusions about vitamin D3's effectiveness remain inconclusive due to the combined nature of the treatment.
Read More
Most Useful Reviews
9.5
Weight stabilisation
On my doctor's advice, I've been taking vitamin D regularly as it isn't produced naturally in my body. After previously using Russian alternatives that increased my appetite dramatically, I switched to Solgar. I've been taking it for over two years, and my weight is stabilised. My health is excellent now, with no fatigue or mood swings.
Read More
9.5
Boosted immunity
This Vitamin D3 boosts the immune system and enhances energy. I’ve noticed a reduction in stress and fatigue. Solgar is a reliable brand, and the product has no side effects. Highly recommend!
Read More
9.5
Chronic fatigue relief
Vitamin D3 from Solgar has significantly improved my chronic fatigue syndrome, as advised by my doctor. Since we cannot adequately replenish D3 from food or sunlight, supplementation is essential. I recommend it!
Read More
Medical Researches
SCIENTIFIC SCORE
Questionable
Based on 2 Researches
5
- All Researches
8
Beta-glucan shows cognitive improvements
Yeast Beta-Glucan Supplementation with Multivitamins Attenuates Cognitive Impairments in Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
Vitamin D3 effects unclear
We conducted a randomized, double-blind, placebo-controlled trial to explore how yeast beta-glucan, along with multivitamins, affects individuals suffering from Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). In our study, 65 participants received either beta-glucan combined with vitamins and zinc or a placebo for 36 weeks.
Interestingly, while our primary focus was on beta-glucan, which was shown to significantly improve cognitive fatigue, the role of vitamin D3 within this combination was not clearly established. This makes it challenging to directly assess the impact of vitamin D3 alone on chronic fatigue syndrome outcomes.
Overall, we discovered that beta-glucan supplementation could positively influence cognitive fatigue, offering promise for future research on nutritional support in ME/CFS patients. However, definitive conclusions about vitamin D3's effectiveness remain inconclusive due to the combined nature of the treatment.
Interestingly, while our primary focus was on beta-glucan, which was shown to significantly improve cognitive fatigue, the role of vitamin D3 within this combination was not clearly established. This makes it challenging to directly assess the impact of vitamin D3 alone on chronic fatigue syndrome outcomes.
Overall, we discovered that beta-glucan supplementation could positively influence cognitive fatigue, offering promise for future research on nutritional support in ME/CFS patients. However, definitive conclusions about vitamin D3's effectiveness remain inconclusive due to the combined nature of the treatment.
Read More
2
Vitamin D3 ineffective for CFS
Effect of intermittent vitamin D3 on vascular function and symptoms in chronic fatigue syndrome--a randomised controlled trial.
Directly tests treatment effectiveness
We conducted a thorough investigation into whether high-dose intermittent vitamin D3 could alleviate symptoms of chronic fatigue syndrome (CFS) and improve vascular health. This double-blind, randomized placebo-controlled trial involved patients meeting established criteria for CFS. Participants received either 100,000 units of vitamin D3 or a placebo every two months for six months.
Over the course of the study, we measured key outcomes such as arterial stiffness, blood pressure, cholesterol levels, and fatigue levels through various tests. Surprisingly, our findings showed that vitamin D3 treatment did not lead to any significant improvements in these areas. We observed only a slight increase in vitamin D levels in the treatment group, but this did not translate into better vascular health or reduced fatigue.
In conclusion, we honestly found that high-dose vitamin D3 did not offer any notable benefits for patients struggling with chronic fatigue syndrome. This study highlights the complexities of treating CFS and suggests that vitamin D3 may not be the solution some had hoped for.
Over the course of the study, we measured key outcomes such as arterial stiffness, blood pressure, cholesterol levels, and fatigue levels through various tests. Surprisingly, our findings showed that vitamin D3 treatment did not lead to any significant improvements in these areas. We observed only a slight increase in vitamin D levels in the treatment group, but this did not translate into better vascular health or reduced fatigue.
In conclusion, we honestly found that high-dose vitamin D3 did not offer any notable benefits for patients struggling with chronic fatigue syndrome. This study highlights the complexities of treating CFS and suggests that vitamin D3 may not be the solution some had hoped for.
Read More
User Reviews
USERS' SCORE
Good
Based on 9 Reviews
8.7
- All Reviews
- Positive Reviews
- Negative Reviews
9.5
Weight stabilisation
On my doctor's advice, I've been taking vitamin D regularly as it isn't produced naturally in my body. After previously using Russian alternatives that increased my appetite dramatically, I switched to Solgar. I've been taking it for over two years, and my weight is stabilised. My health is excellent now, with no fatigue or mood swings.
Read More
9.5
Boosted immunity
This Vitamin D3 boosts the immune system and enhances energy. I’ve noticed a reduction in stress and fatigue. Solgar is a reliable brand, and the product has no side effects. Highly recommend!
9.5
Chronic fatigue relief
Vitamin D3 from Solgar has significantly improved my chronic fatigue syndrome, as advised by my doctor. Since we cannot adequately replenish D3 from food or sunlight, supplementation is essential. I recommend it!
8.3
Health improvement
After taking vitamin D3, my fatigue vanished, and my health noticeably improved.
8.8
Improved energy levels
I used this vitamin three years ago, and it initially worked wonders—my energy increased, and fatigue diminished within a week. Now I'm giving it to my teenage son, as he's rarely in the sun. Thanks for the quality products!
