What is Vitamin D3
Vitamin D3 is not technically a vitamin. It is a fat-soluble pro-hormone which is vital because it influences your entire body. Receptors that respond to the vitamin D3 have been found in almost every type of human cells, from your brain to your bones.
As a study by the Toronto group revealed, Vitamin D deficiency is present in 22% of individuals of European ancestry, 78% of East Asian ancestry and 77% of South Asian ancestry. 5 Possible ethnic differences in physiological pathways for ingested vitamin D may confound across the board recommendations for vitamin D levels. Even a suggested 5000 IU/day by more conservative experts seems to mark an existing recommended daily allowance of 400 IU per day as “Just Enough Not To Die”.
How Do We Get Vitamin D3?
Vitamin D is commonly obtained either from the skin when it is exposed to ultraviolet radiation or through a few dietary sources ( mainly fatty fish, cod-liver oil, and fortified margarine or butter). Experts recommend taking vitamin D3 supplements on a regular basis because food sources are extremely limited as well as our natural production. It is noteworthy that a precursor of vitamin D3 in skin can be generated only when exposure to the sun happens when the sun is at the highest point. This fact has never been explicit in official recommendations because of a general concern about a risk of skin cancer development.
In humans, the precursor to this hormon is produced in the skin when cholesterol (7-dehydrocholesterol) is exposed to sunlight (UV B radiation). Next, this precursor is carried further to your liver (to become 25-hydroxyvitamin D) and then to your kidneys where it gets transformed into active vitamin D3 (or 1,25 dihydroxyvitamin D).
Importance of Vitamin D3
Forms of Vitamin D
Vitamin D3 (or Cholecalciferol) is one of two forms of Vitamin D. Another form is Vitamin D2 (or Ergocalciferol). It is important to stress that 90% of all Vitamin D circulating in our body is Vitamin D3 because it is made by the skin after exposure to sunlight. Vitamin D2 can only be acquired from a few plant sources (e.g mushrooms).Vitamin D deficiency is quite a common problem, which only increases as we age.
Super Health Vitamin D3 spray contains the natural and the most bioavailable form of D3 therefore there is no need for any futher conversion of this form by the liver (as in case of the form of D2 in fortified with vitamin D food) you receive our supplement in the form most readily used by the body. Each spray provides a monthly supply based on a recommended daily serving (8 sprays) of 500 mcg.
Vitamin D vs Cancers
Two features of cancer cells are: lack of differentiation (specialisation) and rapid growth or proliferation. Biologically active forms of vitamin D, such as 1,25-dihydroxyvitamin D and its analogs, appear to induce cell differentiation and/or inhibit proliferation of a number of cancerous and noncancerous cell types maintained in cell culture. As a result, some human epidemiological studies suggest that vitamin D may protect against various cancers: colorectal cancer, breast cancer, prostate cancer.
Vitamin D toxicity
Vitamin D in dietary forms: D2 is found in mushrooms (there is also a synthetic version of vitamin D) and Vitamin D3 is found in animal foods, primarily in seafood. Two different forms of vitamin D seem to have varying toxicity in high amounts.According to Dr. Reinhold Vieth, medical researcher from the University of Toronto’s Mt. Sinai Hospital, there has never been a known case of vitamin D toxicity with an intentional dose of D3. The only D3 toxicity cases reported were published anecdotes when people accidentally consumed very high doses – over 2,000,000 IU per day – both men survived.
Overdose has been observed at 1925 µg/d (77,000 IU per day). Acute overdose requires between 15,000 µg/d (600,000 IU per day) and 42,000 µg/d (1,680,000 IU per day) over a period of several days to months. At the same time, studies over the past year have added more support to the idea that higher levels of vitamin D may decrease risk of cancer and that a typical dietary intakes of 200-400 IU/day may be too low to get appreciable benefits. Doctors may also recommend higher does of vitamin D for a short time to treat an underlying medical problem such as vitamin D deficiency.lthsprays.com/vitamin-d3/vitamin-d-protects-against-various-cancers/”>