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Are You Killing Your Vitamins?

Food Scientists Advise Against Storing Vulnerable Vitamins in Humid Bathrooms to Preserve Nutritional Value

June 1, 2010

Food scientists found that while many people keep vitamins stored in the bathroom, the high humidity levels reduce the effectiveness of the supplements. Because many vitamins are water soluble, humid air can break down the structure and leave them less effective. In tests where vitamins were exposed to varying levels of humidity, some products containing vitamin C had lost all nutritional value in one week. Experts suggested that vitamins should be stored in a cool, dark, dry place and warned that brown spots on vitamins are a sign of moisture degradation.

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KEEP YOUR VITAMINS OUT OF THE BATHROOM! Humidity isn't just an annoyance fogging up your bathroom mirror. It's also damaging to anything that dissolves in water. A bar of soap will still do its job when soggy, but vitamins lose their effectiveness in humid environments, even if you just open the bottle quickly for one pill after your shower. Indicators of damage include discoloration, brown spots on the vitamins and changes in shape and texture.

ANOTHER WAY TO FIND VITAMINS AND NUTRIENTS: Fresh produce is one of the most important ways for the body to obtain crucial antioxidant nutrients. Sulfurophane is present in foods such as broccoli, cabbage, and brussels sprouts and acts as an anti-oxidant in the body. The four most common antioxidants are vitamins E and C, beta-carotene, and selenium. For vitamin E, look to walnuts, peanuts, almonds, olives, avocado, wheat germ, and liver. Leafy green vegetables are an excellent source of both vitamin E and vitamin C. Citrus fruits, tomatoes, peppers, potatoes and broccoli can also boost your vitamin C intake. Common sources of beta-carotene include mangoes, papaya, pumpkin, spinach, kale, squash and apricots. Finally, you can get your required dose of selenium by eating seafood, beef, pork, chicken, brown rice, and whole wheat bread, which can nicely supplement the intake of nutritious produce.

The American Association of Pharmaceutical Scientists contributed to the information contained in the TV portion of this report.

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More information on this story

Humidity = Damaged Vitamins

To Go Inside This Science:  
Lisa Mauer, PhD,
Associate professor of food science
Purdue University
office 765-494-9111
mauer@purdue.edu

American Association of Pharmaceutical Scientists
www.aapspharmaceutica.com
Joseph Catapano
Communications Specialist
catapanoj@aaps.org
703-248-4772


© 2011 American Institute of Physics