Skin is the largest organ in the body. Skin serves as a protective barrier to help prevent harmful substances from entering the body. Damaging sun rays, chemicals, pollution and smoke all can affect the skin. Therefore, if we really want to protect our bodies, we need to commit to protecting our skin and making it a powerful barrier.
Like other organs, our skin requires special care for optimal function. Two of the most important barriers protecting the skin are sebum, a substance secreted by sebaceous glands to reduce water loss and prevent infection, and pH (alkalinity or acidity). The low pH of the skin’s surface helps protect against diseasecausing bacteria.
Arm Your Skin With Sunscreen and Antioxidants
Factors such as the sun, pollution, chemicals, smoke, tanning beds and continual handwashing with antibacterial soaps can break down the skin’s essential barriers for protection. These environmental and behavioral factors can lead to damaged skin because of the oxidation process. Continued sun exposure can result in dry, flaky, wrinkled, aged skin and potentially skin cancer.
In addition to applying sunscreen, consuming antioxidants from foods may offer some protection against these damaging factors. Plant-based
foods such as fruits, vegetable, beans and nuts/seeds are good sources of natural antioxidants.
Of the foods that scientists have tested, these are some foods especially high in antioxidants:
Pecans and other tree nuts such as pistachios, walnuts and almonds
Try These Natural Facial Masks
1 avocado, mashed
1 carrot, cooked and mashed
½ cup heavy cream
1 tablespoon ground flax
3 tablespoons honey Or 1 tablespoon plain yogurt
1 tablespoon honey
How to use:
Mix ingredients together
Apply to clean face
Leave on for 10 minutes
Rinse with a cool washcloth
A Healthy Skin Diet is Like the Heart-healthy Diet*
Enjoy more colorful fruits and vegetables every day
Obtain healthful fats and nutrients from nuts and seeds, legumes, eggs, and olive, canola and peanut oil
Include omega-3 fatty acid-rich foods such as fatty fish, ground flax, walnuts
Choose lean meats
Decrease the amount of saturated and trans fat in your diet
Drink more water and fewer sweetened beverages
Make half your grain choices whole grains (aim for at least 3 ounces per day)
Choose low-fat or nonfat dairy products
Consume More Omega-3 Fatty Acids From a Variety of Sources*
Fatty fish such as salmon, albacore tuna, halibut, mackerel and sardines
Ground flaxseeds or flax oil
Walnuts, soybeans, pumpkin seeds
Canola oil, soybean oil, rapeseed oil
Fish oil or omega-3 fatty acid supplements with EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid)
*Before making major changes in your diet, visit with a health professional.
Drinking plenty of water and fluids is essential for healthy skin. Getting enough fluid helps your body absorb watersoluble nutrients and carry nutrients and oxygen to cells. We lose fluids through urination, bowel movements, breathing and sweating. One sign of adequate fluid intake is consistently light-colored urine.
Fluid needs vary for every individual depending on several factors. Your activity level, your weight and height, health status, and environmental factors all influence your fluid needs. For short bouts of exercise (less than an hour) be sure to hydrate before you exercise; for longer periods of exercise, drink at least 6 ounces of fluid every 15 minutes.
For the average person, about 81% of fluid needs come from water and other beverages and 19% comes from water in food. Drink one-third of your current body weight in ounces. For example, if you weigh 175 pounds, your adequate needs for water would be 58 ounces (175/3 = 58). You need additional fluids if you have increased fluid needs from sickness, sweating, urination, vomiting, diarrhea, fever, pregnancy, breastfeeding or living at a high altitude or other environmental conditions.
Keep a water bottle at your desk.
Keep a pitcher of cold water infused with lemon, apple, cucumber or berries in the refrigerator.
Skin cancer is the most common malignancy in the world. Factors such as skin type, previous history, tanning bed use, unprotected sun exposure, smoking and poor diet all contribute to increased risk. According to one study, self-checks of skin may decrease mortality from melanoma by 63% because doctors do not routinely check for skin abnormalities. Get to know your skin and when it changes. If you notice a suspicious spot, don’t hesitate: Get it checked right away. Have annual skin checks, if possible.
Look for skin growths such as moles, birth marks, beauty spots or sores that:
Change in color, size or texture.
Have irregular borders.
Are bigger than ¼ inch (pencil eraser).
Appear after age 21.
Appear pearly, translucent, tan, brown, black or multi-colored.
Itch, hurt, crust over or scab, erode, bleed or don’t heal within three weeks.
Tanning Beds and Skin Cancer
In 2009, the World Health Organization and the International Agency on the Research for Cancer classified tanning beds as “carcinogenic to humans” and placed them in the same category as arsenic, asbestos and cigarettes. Tanning bed use before the age of 30 was shown to increase skin cancer risk by 75%. Despite the claims, tanning beds are inefficient at increasing serum vitamin D levels, even for those most at risk for vitamin D deficiency.
Don’t Underestimate the Power of Sunscreen
Sunscreen is still the best defense against damaging sun rays. Healthful eating may help your body provide your skin with better barriers, but nothing can replace sunscreen, which offers the best protection. Follow these simple guidelines to protect your skin:
Apply a broad-spectrum sunscreen with a sun protection factor (SPF) of 30 about 30 minutes before going outside.
Reapply sunscreen every one and a half to two hours and after swimming or sweating.
Wear protective clothing such as tightly woven clothes and a wide-brimmed hat.
Take advantage of the shade or limit being outside between 10 a.m. and 4 p.m.
*Exposure to sun promotes the production of vitamin D in your body. Sufficient vitamin D can be attained with only five to 30 minutes of midday sun exposure to the face, arms, legs or back twice per week for healthy individuals during the spring, summer and fall; a vitamin D-rich diet; or a supplement. The current recommendation for vitamin D is 600 International Units per day.
Keep your skin moisturized with lotions containing natural oils and ingredients.
Wash your hands for at least 20 seconds when you wash.
Use alcohol-based sanitizers if hand-washing facilities are not available. However, alcohol may cause your skin to become dry or cracked.
For More Information
www.choosemyplate.gov - USDA website with information about food/ fitness, nutrition and physical activity. (Also see Dietary Reference Intakes for updated information on individual recommendations for vitamins and minerals.)
www.aad.org - American Academy of Dermatology website with information about selecting a dermatologist, skin cancer and skin care.
www.skincancer.org - Skin Cancer Foundation website with the latest information on skin-related topics.
This work is/was supported by the USDA National Institute of Food and Agriculture
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