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Cinnamon

Cinnamon

Spices

Cinnamon & Eczema

One of the most clinically significant eczema triggers among spices. Part of the Balsam of Peru network (with vanilla and clove) — about 50% of people improved on a BOP avoidance diet. Hides in baked goods, toothpaste, and perfumes.

🎯 Symphony Trigger Score
🎯 Symphony Trigger Score

🎯 Symphony Trigger Score

4/5
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Summary

Summary

Cinnamon is one of the most clinically significant dietary triggers for eczema, backed by decades of patch test data. Its key compound, cinnamaldehyde, is a well-established contact allergen — between 5% and 20% of people patch-tested for skin allergies react to it.

What makes cinnamon especially important is that consuming it can cause systemic contact dermatitis — meaning a food that is swallowed triggers a skin reaction, the same way touching it would. Cinnamon is part of the Balsam of Peru cross-reactivity network, which also includes vanilla, clove, and other flavourings. About 50% of people who followed a Balsam of Peru avoidance diet showed improvement in their eczema. Cinnamon hides in baked goods, flavoured teas, chewing gum, toothpaste, mouthwash, and perfumes.

Cinnamon is one of the most clinically significant dietary triggers for eczema, backed by decades of patch test data. Its key compound, cinnamaldehyde, is a well-established contact allergen — between 5% and 20% of people patch-tested for skin allergies react to it.

What makes cinnamon especially important is that consuming it can cause systemic contact dermatitis — meaning a food that is swallowed triggers a skin reaction, the same way touching it would. Cinnamon is part of the Balsam of Peru cross-reactivity network, which also includes vanilla, clove, and other flavourings. About 50% of people who followed a Balsam of Peru avoidance diet showed improvement in their eczema. Cinnamon hides in baked goods, flavoured teas, chewing gum, toothpaste, mouthwash, and perfumes.

The Details - Cinnamon & Eczema

The Details - Cinnamon & Eczema

Reaction Timeline

Delayed (12–72 hours), Cumulative (days of repeated exposure)

Delayed (12–72 hours), Cumulative (days of repeated exposure)

Contact dermatitis reactions are delayed 24–72 hours. Systemic contact dermatitis from ingestion is also delayed (hours to days). BOP elimination diets need 6–8 weeks to show full effect. This is one of the slowest-acting triggers, making it very hard to identify without a structured approach.

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How Much Is Needed To React?

Cumulative

Individual servings of cinnamon may be tolerated, but repeated daily exposure (cinnamon in coffee every morning, cinnamon toothpaste, cinnamon-scented products) creates a cumulative load. A BOP avoidance diet eliminates cinnamon AND all cross-reactive items simultaneously for 6–8 weeks.

Does Preparation Matter?

Minimal difference

Cinnamaldehyde is heat-stable — baking, cooking, or boiling does not reduce its allergenic potential. Cassia cinnamon (most common in supermarkets) has higher cinnamaldehyde content than Ceylon/true cinnamon. Ceylon cinnamon may be marginally better tolerated but still contains cinnamaldehyde. [21]

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Also Watch Out For...

  1. Balsam of Peru — primary cross-reactive network (BOP contains cinnamaldehyde) [22]

  2. Vanilla — vanillin is a BOP constituent [22]

  3. Clove — eugenol is a BOP constituent

  4. Benzoin — BOP cross-reactivity

  5. Propolis (bee glue) — BOP cross-reactivity

  6. Colophony (rosin) — related contact allergen

What To Use Instead

  1. Nutmeg (different allergen profile, not part of BOP network — use for similar warm spice flavor)

  2. Cardamom (warm spice, not BOP cross-reactive)

  3. Allspice (use with caution — some overlap with BOP network possible)

  4. Vanilla-free and cinnamon-free alternatives for baking (maple extract, almond extract — note: almond on trigger list)

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Hidden Sources

  1. Cinnamon toothpaste and mouthwash (direct oral mucosa contact)

  2. Chai tea and spiced drinks

  3. Baked goods (cinnamon rolls, apple pie, cookies)

  4. Breakfast cereals (Cinnamon Toast Crunch, etc.)

  5. Pumpkin spice blends

  6. Curry powders (many contain cinnamon)

  7. Mulled wine and cider

  8. Some chewing gum (cinnamon flavored)

  9. Cosmetics with cinnamon/cinnamaldehyde

  10. Incense and candles (cinnamon-scented)

  11. Balsam of Peru in fragranced products

  12. Some medications (cinnamon flavoring)

Symphony helps you know if Cinnamon is your why.

Symphony helps you know if Cinnamon is your why.

Symphony connects the dots between your skin condition and thousands of potential triggers, so you get a personalized plan to achieve lasting change.

Symphony connects the dots between your skin condition and thousands of potential triggers, so you get a personalized plan to achieve lasting change.

Symptom Improvement

Symptom Improvement

Symptom Improvement

>34%

>34%

>34%

Find a trigger within 7 days

Find a trigger within 7 days

Find a trigger within 7 days

92%

92%

92%

Start Free Assessment

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This content is for informational purposes only and is not medical advice. Food triggers are highly individual — a food appearing in this database does not mean it will cause your eczema to flare. The information presented is drawn from published clinical research and patient community reports, but it is not a substitute for professional diagnosis or treatment. If you suspect a food allergy or sensitivity, consult a dermatologist or allergist. The gold standard for identifying food triggers remains a supervised elimination diet with oral food challenges. Symphony is a tracking tool, not a diagnostic or medical device.

This content is for informational purposes only and is not medical advice. Food triggers are highly individual — a food appearing in this database does not mean it will cause your eczema to flare. The information presented is drawn from published clinical research and patient community reports, but it is not a substitute for professional diagnosis or treatment. If you suspect a food allergy or sensitivity, consult a dermatologist or allergist. The gold standard for identifying food triggers remains a supervised elimination diet with oral food challenges. Symphony is a tracking tool, not a diagnostic or medical device.