Gelatin allergy: Gelatin, animal-derived protein containing high levels of collagen, is sometimes used as a dietary supplement for joint and arthritic conditions. Taken orally, gelatin can cause indigestion, bloating, heartburn and gas. This is due to a food intolerance, not a true allergy. Rarely, people can have an anaphylactic reaction to gelatin found in certain vaccines, such as the mmr, dtap and varicella.
Answered 6/9/2015
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