Vitamins: A Time and a Place


By Dean Stattmann


A Purdue University study has discovered that where you keep your vitamins in your home has a direct effect on their quality and lifespan.

According to the study, fluctuations in humidity can subject vitamins to a process called deliquescence, whereby they dissolve and consequently lose some of their value.

“If you get some moisture present or ingredients dissolve, they’ll decrease the quality and shelf life of the product and decrease the nutrient delivery,” says Lisa Mauer, an associate professor of food science at Purdue. “You can get complete loss of the ingredients. It depends on the conditions. It depends on the formulations. Within a very short time – in a week – you can get complete loss of vitamin C in some products that have deliquesced.”

(Read the full story at

Image by bradley j under flickr’s creative commons license

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