The human body is only 30 000 genes and vitamin D affects more than two thousand of them. This is one of the main reasons why it affects so many diseases - from cancer and autism to heart disease and rheumatoid arthritis.
A study conducted by Dr. William Grant, Ph.D., an internationally recognized researcher and expert says that about 30 percent of cancer deaths - which means 2 million people worldwide each year can be prevented just by higher levels of vitamin D.
This vitamin has multiple protective effect against cancer, including:
In cancer cases, researchers point out that increased levels of vitamin D3 can mean prevention of diseases affecting each year nearly 1 million people worldwide! Other studies have shown that cancer risk can be reduced by more than half by optimizing the levels of vitamin D. This nutrient also suppresses the cold and flu. It regulates the activation of genes affecting the immune system, which attacks and destroys bacteria and viruses. It is very rare that someone who has an optimum level of vitamin D in the body becomes ill from influenza.
The average level of vitamin D in the population during the late winter is only about 15-18 ng/ml, which is considered a very serious condition. It is estimated that more than 95 percent of the elderly suffer the shortcomings and the rest of the public is 85 percent. Lack of this is enhanced in adults of all ages who have increased skin pigmentation - such as descendants of immigrants from Africa, the Middle East or India, who are constantly protected from the sun or restrict their movements outside.
How to optimize vitamin D levels
The ideal way to get vitamin D is an adequate expose skin to sunlight. Unfortunately, most of us do not have access to its sufficient rate a half of the year. Moreover, even on sunny days we become modern cave people and most of the time when the sun shines, we spend at home or at work. There are not many of those who move to the sun regularly. Exposure to the sun (without sunglasses or sunscreen protection) for about 10-15 minutes per day, with its beams interfering at least 40 percent of your skin is generally exactly what you need. People with dark skin need a much longer stay though.