On Jan. 1, two new federal rules — one aimed at ingredients often linked to food allergies, the other at unhealthy fat that can significantly boost heart disease risk — went into effect. Both are designed to help better inform you about what you maybe eating without realizing it. First, the foods linked to allergies. About 2 percent of adults and 5 percent of infants and children have food allergies, which can cause a spectrum of symptoms, from mild gastrointestinal distress to deadly anaphylactic shock. An estimated 30,000 people in the United States require emergency room treatment annually for food allergies and 150 die, according to the Food and Drug Administration (FDA).
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