A study of blood test results from Denmark has shown that too little vitamin D as well as too much vitamin D is not good for you health. The study was done on 247,574 blood samples that were taken from doctor visits. The researchers were not surprised by too little vitamin D as not healthy, but had no answer for why the higher levels showed a higher mortality. For levels at 10 nmol/L(4 ng/ml) or less presented mortality at 2.3 times of normal at 50 nmol/L(20 ng/ml). What surprised the researchers was at 140 nmol/L(56 ng/ml) there was a mortality that was 1.42 times higher than normal.
I suspect there are two major reasons for a higher mortality at the higher level of vitamin D. As we have discussed before, high levels of vitamin D2 are dangerous and can cause serious disease in the body. This is the reason for the concern about vitamin D that goes back to the 1930’s when the medical industry said that vitamin D3 was equal to vitamin D2. There were few cases of toxicity in the 1930’s with D3 and then they started coming at several per month when D2 was declared as equal. There was no distinction made in the study between 25(OH)D2 and 25(OH)D3.
The second reason is intimately tied to the first. That is people that feel bad and know that they are ill will do almost anything to feel better. This includes looking at ‘alternative medicine’ for results. When they discuss their low vitamin D level with their doctor, the normal reaction is to write a script for 50,000 IU of D2 per week. This amount of vitamin D would translate into a 25(OH)D level of 50ng/ml or higher in most people.
The only reason that I can think of that has prevented the separation of study results between the two types of vitamin D is because the myth of equality is perpetuated. There may also be a factor of laziness in how difficult it would be to separate the two. Well, there may actually be another reason. As long as the confusion persists, the money for research will kept coming. I know that this may not be at the top of consciousness, but it always resides in the minds of managers in how to sustain employment. As you note in the article sub title, “More studies are needed.”
I would take the positive advice of Bill Sardi, a medical writer for over thirty years, in this article written for the Huffington Post, Getting Ahead of the Vitamin D Revolution Curve. – Pandemic Survivor