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THIS WEEK'S TOP STORIES Supplements: Nutrition in a pill Before taking vitamin and mineral supplements, understand what they will and won't do for you. Managing your cholesterol From fitting in fitness and eating well to choosing medication, learn how to keep your cholesterol in check. EXPERT ANSWERS Echinacea: Is it effective for the common cold? Echinacea may slightly reduce the duration and severity of cold symptoms, but the effect may be too minor to notice. Can you outgrow food allergies? Learn which food allergies are more likely to fade with age and which tend to persist into adulthood. Click here to get a free e-subscription to the Housecall newsletter.