Vitamine D can prevent or possibly treat many kinds of cancer!

據美國最新醫學研究發現，人們應適度的曝曬太陽，方可防止癌症，尤以直腸癌。

傳統以來，皮膚科醫生都建議人們應小心紫外線，外出時，應使用防曬乳液，以避免罹患皮膚癌。但是，最近的四項獨立研究卻發現，適度的曝曬太陽，如：每日十五分鐘，可保護淋巴系統，防止罹患攝護腺、肺、皮膚癌，其中，尤其有充足的證據顯示，可防止直腸癌。

事實上，維他命D是防止上述癌症的關鍵因素，而人們常常難以從飲食、牛奶中，獲得足夠的維他命D。唯有適度的曝曬太陽，藉著陽光中的紫外線，刺激皮膚，以產生足夠的維他命D，防止罹患上述諸般癌症。

Vitamin D and cancer: new research

15:39 2005-05-22

A growing body of research suggests that vitamin D, which the skin makes from sunshine, might help prevent and possibly treat many kinds of cancer.

Some scientists believe that people should spend a little more time in the sun -- without sunscreen -- so that their skin can absorb this helpful vitamin. Obviously, that's a controversial notion, given all the warnings about the risk of skin cancer, tells the Newsday.

The vitamin is D, nicknamed the "sunshine vitamin" because the skin makes it from ultraviolet rays. Sunscreen blocks its production, but dermatologists and health agencies have long preached that such lotions are needed to prevent skin cancer.

Now some scientists are questioning that advice.

The reason is that vitamin D increasingly seems important for preventing and even treating many types of cancer. In the last three months alone, four separate studies found it helped protect against lymphoma and cancers of the prostate, lung and, ironically, the skin. The strongest evidence is for colon cancer.