Another leading oncology expert — Dr. Keith Block, who has penned more than 75 peer-reviewed articles and founded the Block Center for Integrative Cancer Treatment in Illinois — is telling people to put down their daily sunscreen and get regular non-burning UV exposure.

Block penned an essay in the Huffington Post this week — joining British oncologist Dr. Tim Oliver as cancer-fighting doctors willing to stand up to the cosmetic dermatology industry in print.

“On one hand, we’ve all been warned of the dangers that lurk behind those healthy-looking tans — most notably, an increased risk of skin cancer and premature wrinkles. On the other hand, there is also reasonable evidence that sun exposure does not induce melanoma, the deadliest form of skin cancer,” Block wrote. “In fact, there are several studies that demonstrate sun exposure can actually protect us from cancer! To be specific, the exposure to UVB sun radiation has been shown to reduce the risk of 19 major types of cancer through the production of vitamin D.”

Block’s recommendation: Get 20 minutes of unprotected sun exposure daily. “This is essential for meeting our most basic needs for Vitamin D. Once this is taken care of, I recommend both physical protection; i.e., hats, clothing and umbrellas, as well as chemical protection — sunscreens. However, it must be mentioned that many sunscreens on the market today have come under fire not only due to inaccurate labeling — a product states it has an SPF (Sun Protection Factor) of 50 and it’s actually a four — but many have been found to contain a host of controversial chemicals that include potential carcinogens, cancer promoters, free radical generators and hormone disruptors. In addition, the use of sunscreen is known to reduce the production of Vitamin D in the body.”

To read Block’s full essay in The Huffington Post click here.