About The Buzz: Fruits And Vegetables Can Prevent Sunburn And Skin Cancer
TheBUZZ: Fruits and vegetables can prevent sunburn and skin
cancer?
The antioxidants in fruits and vegetables provide a barrier to the skin which can prevent sunburn and skin cancer.
WHAT WE KNOW
Slathering on the sunscreen,
covering up, and eating a handful of cranberries before you go out in the
sun? Are fruits and vegetables the next form of sunscreen? We know that
sunburn is caused by excessive exposure to the sun or other ultraviolet light
sources. Sunburn occurs because the body is unable to make enough melanin
(protective pigment in the skin) to protect the skin. Repeated sunburns
increase the risk of skin cancer in the damaged area. In fact, each
blistering sunburn obtained during adolescence doubles the risk of developing
malignant melanoma, the most serious type of skin cancer, later in adulthood!
The current recommendations for
sun protection include …
o
Wear a
sunscreen of at least 30 SPF that protects against both UVA and UVB rays
o
Wear
protective clothing—including sunglasses and a hat
o
Avoid
the sun during its strongest hours (10 a.m. to 4 p.m.)
While all of these measures are
critical to protecting your skin from the damaging effects of the sun’s rays,
new research is looking at the role of antioxidants (in fruits and
vegetables) in protecting and preventing sun damage.
HOW DO WE KNOW THIS?
A review published in Clinics
in Dermatology found that in several studies weekly consumption of fish,
shellfish, daily tea drinking, and high consumption of fruits and
vegetables were associated with melanoma prevention. The study concluded,
however, that there are very few human clinical trials that exist in this
area of research and future studies need to be done.
Another study reported in Nutrition
Reviews found that the foods associated with a traditional Mediterranean
diet—olive oil, fish, yogurt, colorful fruits and vegetables—may have
contributed to the low rates of melanoma in the Mediterranean region despite
high levels of solar radiation. This study attributed the prevention to
antioxidants, specifically phytochemicals, as the main line of defense
against sunburn. The review suggested that diets rich in phytochemicals
(fruits and vegetables) could complement external (sunscreen, clothing, etc.)
strategies for lifelong sun protection.
OUR ADVICE
With the summer months quickly
approaching, many families will start enjoying more time outside being physically active. Outdoor physical activity is
very important, so what should you do? Just remember that covering up,
slathering on the sunscreen, and avoiding the sun during peak hours are important
steps to take toward preventing a burn!
While currently, there is no substantial
evidence that proves fruits and vegetables can be used to protect your skin
from UV radiation, we do know that all fruits and vegetables are full
of vitamins, minerals, phytochemicals, and antioxidants that protect you and your family
from many diseases (including cancer!) and disorders. So eating MORE fruits and vegetables is what really
matters! Remember to eat a variety of colors to give you and your family the
best recipe of beneficial compounds to stay healthy and disease free.
|
Jensen, J., G. Wing, R.
Dellavalle. “Nutrition and Melanoma Prevention” Clinics in Dermatology (2010);
28: 644-49.
Shapira, N. “Nutritional Approach to Sun Protection: A Suggested Complement to External Strategies.” Nutrition Reviews (2010); 68 (2): 75-86.
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