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Blue 1
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Blue 1

Blue 1 (E133) is a synthetic dye with extremely rare reports of hypersensitivity reactions (e.g., skin rashes). Not recognized as an allergen by FDA/EFSA, though some individuals may experience non-allergic intolerance symptoms.
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Blue 1

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Symptoms

  • Hives
  • Itching
  • Swelling
  • Difficulty Breathing
  • Nausea or Vomiting
  • Headache
  • Anaphylaxis (severe reaction)

Healing & Prevention

  • Avoidance of Blue 1
  • Antihistamines
  • Epinephrine (for severe reactions)
  • Hydration
  • Cold compress
  • Consult an Allergist
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Top categories

Swelling (119) Anaphylaxis (115) Digestive Issues (113) Hives (99) Itching (95) Difficulty Breathing (84) Skin rash (62) Diarrhea (58) Nausea (55) Abdominal Pain (51) Skin Rash or Hives (46) Headache (44) Respiratory Symptoms (43) Oral Allergy Syndrome (OAS) (40) Skin Reactions (36) Nausea or Vomiting (34) Itching or Tingling in the Mouth (33) Anaphylaxis (Rare) (23) Anaphylaxis (severe reaction) (22) Fatigue (22) Swelling (angioedema) (22) Difficulty breathing or wheezing (21) Vomiting (21) Gastrointestinal Issues (18) Anaphylaxis (Severe Allergic Reaction) (17) Dizziness or Lightheadedness (17) Swelling of lips, face, or throat (16) Digestive issues (nausea, vomiting, diarrhea) (12) Dizziness (12) Respiratory problems (12)

Top tags

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