Vitamin d is the decisive link.
Vitamin D deficiency used to lead to diseases, but now we know that vitamin D is the authority of other health problems, especially adults. Lack of it is the cause of many diseases. Searching on my website provided you with more than 170 blogs, in which I discussed the role of vitamin D, and these blogs described that vitamin D is the decisive link of many different diseases. In the study of 20 15 from Brazil, the author pointed out that the key blood concentration of vitamin D was 12 ng/mL. All these critically ill patients are being treated in the intensive care unit. When the blood vitamin D level is 12 ng/mL, the mortality rate is 32.2%. In the control group, the mortality rate of ICU patients exceeding 12 ng/mL was only 13.2%. The author concludes that the low level of vitamin D at ICU admission is an independent risk factor for the death of critically ill patients.
Low vitamin D is an obvious cause of adverse consequences of some diseases.
Can be used for treating arthritis, cardiovascular diseases, breast cancer, diabetes, osteoporosis, influenza, etc. Laboratory tests show that the content of 25- hydroxyvitamin D is usually lower than 65438 0 5 ng/ml. The "Lab Testing" link has 269 peer-reviewed references.
A study of 20 15 in Italy shows that if the level of vitamin D3 in blood is low, the microvascular complications of diabetic patients are high. If the patient's vitamin D level is high, there will be no complications such as retinopathy or nephropathy. But if it is lower than 20 ng/mL, it will cause great damage to the capillaries of eyes and kidneys.
multiple sclerosis
For some time, it has been known that MS is more common in the northern hemisphere due to lack of sunlight, which in turn leads to a decrease in the production of vitamin D3 in the skin. Multiple sclerosis (MS) is an autoimmune disease in which immune cells attack the nerve layer. Both nerve cells and immune cells have vitamin D receptors. It seems that vitamin D can calm immune cells, and multiple sclerosis is more likely to recur.
Dr Fitzgerald and his colleagues published a study in the Journal of Neurology of the American Medical Association? On 20 15. The results of this study show that there are obvious differences between MS patients with higher and lower vitamin D levels.
Multiple sclerosis with high and low vitamin D levels
The patients with the highest level of vitamin D in blood (more than 40 ng/mL) have the lowest incidence of new MS lesions. Previous studies have found that the low level of vitamin D in blood (below 25 ng/mL) is related to the high risk of MS. Dr. Fitzgerald's research shows that the increase of serum vitamin D level by 20 ng/mL(50.0-nmol/L) is related to the decrease of the incidence of new lesions in MS by 365,438 0%. Patients with the highest level of vitamin D over 40 ng/mL( 100 nmol/L) have the least additional MRI disease variables (47% lower than patients with the lowest level of vitamin D).
Dementia and Alzheimer's disease
A study of 20 14? The results show that patients with low levels of vitamin D have a higher risk of dementia and Alzheimer's disease.
Specifically, the researchers found the following observations.
? Vitamin D content below 10 ng/mL: the risk of Alzheimer's disease is increased 122%.
? Vitamin d level is 10 ~ 20 ng/mL: the risk of Alzheimer's disease increases by 5 1%.
Vitamin D is the decisive link of the immune system.
In a publication in 2006, Dr. John Cannell and his colleagues studied why influenza broke out seasonally. They found that the innate immune system depends heavily on vitamin D. During 1 month, February, March and April, the average level of 25- hydroxyvitamin D in people with insufficient sunshine in the northern hemisphere was only 15 to 17 ng/mL. On the contrary, from July to September, the vitamin D level of these volunteers was 24 to 29 ng/mL. The author emphasizes that this is why influenza is prevalent in late winter/early spring and disappears in summer.
The vitamin D required by the immune system is 2000 IU or more per day.
Vitamin D is essential for the function of innate and adaptive immune system. That's why children don't get the flu virus like adults. Dr. Cannel said: "In the past 20 years, the innate immunity of the elderly has declined due to medical and government warnings to avoid sun exposure. Although young people usually ignore such advice, older people usually follow it. " ? If elderly patients take higher doses of vitamin D3 every day, their immunity will be as strong as that of children. The publication cited another paper, which found that a daily intake of 2000 IU or more can enhance the immune system. Please note that this is a higher dose than treating diseases. The treatment of this disease only responds to 400 IU of vitamin D3 every day.