Overview

SCIENTIFIC SCORE
Questionable
Based on 8 Researches
6.3
USERS' SCORE
Good
Based on 3 Reviews
8.3
Supplement Facts
Serving Size: 2 Veg Capsules
Amount Per Serving
%DV
Vitamin D (as Ergocalciferol)
10 mcg (400 IU)
50%
Calcium (from Fossilized Coral Calcium)
500 mg
38%
Magnesium (from Magnesium Oxide, Citrate and Aspartate)
250 mg
60%
Fossilized Coral Calcium
1.43 g (1,430 mg)

Top Medical Research Studies

We conducted a study to see if high-dose vitamin D3 could improve vascular health and reduce fatigue in individuals suffering from chronic fatigue syndrome (CFS). This was a well-structured trial involving 50 participants, all of whom met specific diagnostic criteria for CFS. Participants were divided into two groups: one received 100,000 units of vitamin D3 every two months, while the other received a placebo over a period of six months.

Despite a noticeable increase of 22 nmol/L in vitamin D levels for those who received the treatment compared to the placebo group, we found no significant benefits. There was no change in arterial stiffness, a key vascular health indicator, nor improvements in overall fatigue as measured by the Piper Fatigue scale.

In essence, our findings indicate that high-dose oral vitamin D3 does not offer the hoped-for relief in vascular function or fatigue for patients with chronic fatigue syndrome. This suggests that other therapeutic options may need to be explored for individuals suffering from this condition.
Read More
8
Magnesium potentially benefits CFS patients
We investigated the relationship between magnesium levels in red blood cells and chronic fatigue syndrome (CFS). A case-control study revealed that CFS patients had lower magnesium levels than healthy individuals.

In a randomized, double-blind trial, 32 CFS patients received either magnesium sulphate or a placebo for six weeks. Those treated with magnesium reported significant improvements in energy, emotional wellbeing, and pain relief, with twelve out of fifteen feeling better.

In contrast, only three out of seventeen patients on placebo reported any improvement. Overall, these findings suggest that magnesium treatment may positively impact the wellbeing of those suffering from CFS.
Read More
7
Magnesium sulfate shows potential benefits
We aimed to understand the effects of magnesium sulfate treatment on a patient with chronic fatigue syndrome. The case involved a 29-year-old woman experiencing severe fatigue alongside various symptoms, including swelling lymph nodes and muscle pain.

After other treatments failed to provide relief, we administered magnesium sulfate intravenously once a week. Remarkably, after six weeks, the patient reported a significant reduction in fatigue and improved daily functioning, eventually leading to her discharge from the hospital.
Read More

Most Useful Reviews

7.5
Increased energy levels
Very pleased with the fast delivery, high-quality and convenient packaging. Nothing was damaged, excellent dosage, and a natural composition from herbal ingredients. The capsules are a bit large, but I can swallow them easily; they taste citrusy, which I enjoy. I take 1 capsule daily with meals along with vitamin D3+K2, magnesium, and vitamin B6. I've noticed benefits after 10 days; I have more energy, headaches have stopped, and my mood is excellent throughout the day. I recommend it, especially for those into sports, fitness, or dieting, as omega-3 energises and replenishes what the body lacks.
Read More
7.5
Reduced fatigue effectively
I returned to buy it again because it was effective and helped reduce my fatigue significantly.
Read More
7.5
Less overall fatigue
Coral Calcium Plus is a fantastic product that truly meets expectations. After a month of use, I noticed improvements in my nails and hair, alongside decreased overall fatigue. The capsules are easy to swallow without any unpleasant aftertaste. The impressive formulation combines natural coral calcium with magnesium and vitamin D3 for maximum absorption. I appreciate that it contains no unnecessary additives or artificial colours. The packaging is convenient and keeps the contents safe. This product has become an essential addition to my diet during periods of increased physical activity. I recommend Coral Calcium Plus for those concerned about bone health and overall well-being!
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 8 Researches
6.3
  • All Researches
9.5
Vitamin D treatment enhances alertness
We explored the impact of vitamin D treatment on a case of excessive daytime sleepiness (EDS), specifically in the context of chronic fatigue syndrome. A 28-year-old woman was found to have low levels of vitamin D after experiencing four months of overwhelming fatigue and sleepiness, despite being tested for sleep disorders.

After starting vitamin D supplementation, her condition improved remarkably within just two weeks. Along with a boost in alertness, her associated symptoms like muscle pain and headaches began to fade. By the end of the treatment, her score on the Epworth Sleepiness Scale, which measures daytime sleepiness, dropped significantly, indicating much better daytime function.

This case suggests that vitamin D may play a role in improving symptoms commonly linked to chronic fatigue syndrome. While more research is needed to fully understand the mechanisms behind this improvement, our findings open the door to potentially screening patients with chronic fatigue for vitamin D deficiency to expedite treatment.
Read More
8
We conducted a double-blind, placebo-controlled trial to evaluate the effects of an oral food supplement (OFS) on long COVID patients, particularly focusing on chronic inflammation and fatigue. The supplement included components like rosehip, propolis, royal jelly, and zinc, with vitamin C being a key ingredient.

Through our two-month study, which involved giving participants either the OFS or a placebo, we made some interesting observations. Notably, patients who took the OFS experienced a significant reduction in inflammatory markers, which are often linked to chronic fatigue syndrome. This included improvements in the neutrophil-to-lymphocyte and monocyte-to-lymphocyte ratios.

We also noted a substantial increase in vitamin D levels among those taking the supplement, which correlated with enhanced quality of life and decreased fatigue as measured by the fatigue severity scale. Our findings suggest that the combination of ingredients in the OFS, particularly its vitamin D content, can help alleviate some symptoms associated with long COVID, especially chronic fatigue.

However, since the supplement included multiple active ingredients, isolating the specific impact of vitamin D on chronic fatigue syndrome is challenging. Still, the overall results indicate positive changes for patients dealing with the lingering effects of COVID.
Read More
8
Magnesium potentially benefits CFS patients
We investigated the relationship between magnesium levels in red blood cells and chronic fatigue syndrome (CFS). A case-control study revealed that CFS patients had lower magnesium levels than healthy individuals.

In a randomized, double-blind trial, 32 CFS patients received either magnesium sulphate or a placebo for six weeks. Those treated with magnesium reported significant improvements in energy, emotional wellbeing, and pain relief, with twelve out of fifteen feeling better.

In contrast, only three out of seventeen patients on placebo reported any improvement. Overall, these findings suggest that magnesium treatment may positively impact the wellbeing of those suffering from CFS.
Read More
7
Magnesium shows limited benefit for fatigue
We investigated how magnesium levels relate to chronic fatigue by studying 93 patients with unexplained fatigue.

Around 47% of participants showed magnesium deficiency, linked to reduced plasma antioxidant capacity.

Although magnesium supplementation didn't increase blood glutathione levels, we observed improved magnesium stores and vitamin E levels.

However, this did not equate to a significant boost in antioxidant activity or a decrease in lipid vulnerability. Therefore, while magnesium may help improve some parameters, it is not a panacea for chronic fatigue syndrome.
Read More
7
Magnesium sulfate shows potential benefits
We aimed to understand the effects of magnesium sulfate treatment on a patient with chronic fatigue syndrome. The case involved a 29-year-old woman experiencing severe fatigue alongside various symptoms, including swelling lymph nodes and muscle pain.

After other treatments failed to provide relief, we administered magnesium sulfate intravenously once a week. Remarkably, after six weeks, the patient reported a significant reduction in fatigue and improved daily functioning, eventually leading to her discharge from the hospital.
Read More

User Reviews

USERS' SCORE
Good
Based on 3 Reviews
8.3
  • All Reviews
  • Positive Reviews
  • Negative Reviews
7.5
Increased energy levels
Very pleased with the fast delivery, high-quality and convenient packaging. Nothing was damaged, excellent dosage, and a natural composition from herbal ingredients. The capsules are a bit large, but I can swallow them easily; they taste citrusy, which I enjoy. I take 1 capsule daily with meals along with vitamin D3+K2, magnesium, and vitamin B6. I've noticed benefits after 10 days; I have more energy, headaches have stopped, and my mood is excellent throughout the day. I recommend it, especially for those into sports, fitness, or dieting, as omega-3 energises and replenishes what the body lacks.
Read More
7.5
Reduced fatigue effectively
I returned to buy it again because it was effective and helped reduce my fatigue significantly.
Read More
7.5
Less overall fatigue
Coral Calcium Plus is a fantastic product that truly meets expectations. After a month of use, I noticed improvements in my nails and hair, alongside decreased overall fatigue. The capsules are easy to swallow without any unpleasant aftertaste. The impressive formulation combines natural coral calcium with magnesium and vitamin D3 for maximum absorption. I appreciate that it contains no unnecessary additives or artificial colours. The packaging is convenient and keeps the contents safe. This product has become an essential addition to my diet during periods of increased physical activity. I recommend Coral Calcium Plus for those concerned about bone health and overall well-being!
Read More

Frequently Asked Questions

7.5
Increased energy levels
Very pleased with the fast delivery, high-quality and convenient packaging. Nothing was damaged, excellent dosage, and a natural composition from herbal ingredients. The capsules are a bit large, but I can swallow them easily; they taste citrusy, which I enjoy. I take 1 capsule daily with meals along with vitamin D3+K2, magnesium, and vitamin B6. I've noticed benefits after 10 days; I have more energy, headaches have stopped, and my mood is excellent throughout the day. I recommend it, especially for those into sports, fitness, or dieting, as omega-3 energises and replenishes what the body lacks.
7.5
Less overall fatigue
Coral Calcium Plus is a fantastic product that truly meets expectations. After a month of use, I noticed improvements in my nails and hair, alongside decreased overall fatigue. The capsules are easy to swallow without any unpleasant aftertaste. The impressive formulation combines natural coral calcium with magnesium and vitamin D3 for maximum absorption. I appreciate that it contains no unnecessary additives or artificial colours. The packaging is convenient and keeps the contents safe. This product has become an essential addition to my diet during periods of increased physical activity. I recommend Coral Calcium Plus for those concerned about bone health and overall well-being!
7.5
Reduced fatigue effectively
I returned to buy it again because it was effective and helped reduce my fatigue significantly.
We conducted a study to see if high-dose vitamin D3 could improve vascular health and reduce fatigue in individuals suffering from chronic fatigue syndrome (CFS). This was a well-structured trial involving 50 participants, all of whom met specific diagnostic criteria for CFS. Participants were divided into two groups: one received 100,000 units of vitamin D3 every two months, while the other received a placebo over a period of six months.

Despite a noticeable increase of 22 nmol/L in vitamin D levels for those who received the treatment compared to the placebo group, we found no significant benefits. There was no change in arterial stiffness, a key vascular health indicator, nor improvements in overall fatigue as measured by the Piper Fatigue scale.

In essence, our findings indicate that high-dose oral vitamin D3 does not offer the hoped-for relief in vascular function or fatigue for patients with chronic fatigue syndrome. This suggests that other therapeutic options may need to be explored for individuals suffering from this condition.
9.5
Vitamin D treatment enhances alertness
We explored the impact of vitamin D treatment on a case of excessive daytime sleepiness (EDS), specifically in the context of chronic fatigue syndrome. A 28-year-old woman was found to have low levels of vitamin D after experiencing four months of overwhelming fatigue and sleepiness, despite being tested for sleep disorders.

After starting vitamin D supplementation, her condition improved remarkably within just two weeks. Along with a boost in alertness, her associated symptoms like muscle pain and headaches began to fade. By the end of the treatment, her score on the Epworth Sleepiness Scale, which measures daytime sleepiness, dropped significantly, indicating much better daytime function.

This case suggests that vitamin D may play a role in improving symptoms commonly linked to chronic fatigue syndrome. While more research is needed to fully understand the mechanisms behind this improvement, our findings open the door to potentially screening patients with chronic fatigue for vitamin D deficiency to expedite treatment.
8
Magnesium potentially benefits CFS patients
We investigated the relationship between magnesium levels in red blood cells and chronic fatigue syndrome (CFS). A case-control study revealed that CFS patients had lower magnesium levels than healthy individuals.

In a randomized, double-blind trial, 32 CFS patients received either magnesium sulphate or a placebo for six weeks. Those treated with magnesium reported significant improvements in energy, emotional wellbeing, and pain relief, with twelve out of fifteen feeling better.

In contrast, only three out of seventeen patients on placebo reported any improvement. Overall, these findings suggest that magnesium treatment may positively impact the wellbeing of those suffering from CFS.
4
Limited magnesium effectiveness in CFS
We systematically reviewed randomized controlled trials on complementary and alternative medicine (CAM) treatments for chronic fatigue syndrome (CFS).

Although 26 studies involving over 3,000 participants explored various therapies, the findings showed limited effectiveness overall.

While some treatments like massage and specific dietary supplements had some positive effects, most failed to provide significant benefits.

Notably, magnesium showed potential, but due to small sample sizes and biases in the studies, we can't make firm conclusions just yet. More rigorous studies are needed to confirm these effects.
7
Magnesium shows limited benefit for fatigue
We investigated how magnesium levels relate to chronic fatigue by studying 93 patients with unexplained fatigue.

Around 47% of participants showed magnesium deficiency, linked to reduced plasma antioxidant capacity.

Although magnesium supplementation didn't increase blood glutathione levels, we observed improved magnesium stores and vitamin E levels.

However, this did not equate to a significant boost in antioxidant activity or a decrease in lipid vulnerability. Therefore, while magnesium may help improve some parameters, it is not a panacea for chronic fatigue syndrome.

References

  1. Noce A, Marrone G, Di Lauro M, Vita C, Montalto G, et al. Potential Anti-Inflammatory and Anti-Fatigue Effects of an Oral Food Supplement in Long COVID Patients. Pharmaceuticals (Basel). 2024;17. doi:10.3390/ph17040463
  2. Witham MD, Adams F, McSwiggan S, Kennedy G, Kabir G, et al. Effect of intermittent vitamin D3 on vascular function and symptoms in chronic fatigue syndrome--a randomised controlled trial. Nutr Metab Cardiovasc Dis. 2015;25:287. doi:10.1016/j.numecd.2014.10.007
  3. McCarty DE. Resolution of hypersomnia following identification and treatment of vitamin d deficiency. J Clin Sleep Med. 2010;6:605.
  4. Alraek T, Lee MS, Choi TY, Cao H, Liu J. Complementary and alternative medicine for patients with chronic fatigue syndrome: a systematic review. BMC Complement Altern Med. 2011;11:87. doi:10.1186/1472-6882-11-87
  5. Manuel y Keenoy B, Moorkens G, Vertommen J, Noe M, Nève J, et al. Magnesium status and parameters of the oxidant-antioxidant balance in patients with chronic fatigue: effects of supplementation with magnesium. J Am Coll Nutr. 2000;19:374.
  6. Takahashi H, Imai K, Katanuma A, Sugaya T, Hisano K, et al. [A case of chronic fatigue syndrome who showed a beneficial effect by intravenous administration of magnesium sulphate]. Arerugi. 1992;41:1605.
  7. Uchida A. [Therapy of chronic fatigue syndrome]. Nihon Rinsho. 1992;50:2679.
  8. Cox IM, Campbell MJ, Dowson D. Red blood cell magnesium and chronic fatigue syndrome. Lancet. 1991;337:757.
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