For $19, today's Groupon gets you $40 worth of vitamins and nutritional supplements at GNC. Head to any one of 12 GNC locations throughout the Chicago-land area to use your Groupon.
GNC sells a wide variety of supplements (vitamin and mineral and herbal) and other health products (sports nutrition, diet, energy, body care, and more). You're sure to find something right for you, such as Ginkgo biloba capsules or that box of SuperFoods Supreme you wish for every Groundhog Day.
More than 25,000 customers on BizRate rate GNC "good" (the equivalent of three out of four stars). They left some comments: