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Journal of Clinical Gastroenterology:
doi: 10.1097/MCG.0b013e3181ae4e1b
Letters to the Editor

Annatto and IBS

Stein, Herbert L. MD (Retired)

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Author Information

Former Assistant Clinical, Professor Division of Allergy and Clinical Immunology UCLA, School of Medicine, Los Angeles, CA

Funding Declaration: None.

Conflict of Interest: None.

To the Editor:

I would like to bring to the attention of your readership the possibility of a subset of their irritable bowel syndrome (IBS) patients who may be suffering adverse reactions to the food coloring additive, annatto.

A case in point is my wife who presented for a gastrointestinal (GI) work-up suffering frequent bouts of diarrhea, abdominal pain, and bloating. A GI work-up, including colonoscopy, failed to reveal a cause. The problem continued daily for 3 years until we made a 37-day trip to Europe.

To our surprise, during this vacation, her symptoms abated with the exception of one recurrence after a cup of coffee with a non-dairy creamer.

She had been using the coffee creamer, Coffee-mate, daily before the trip. On the trip, only milk and cream were available until the solitary aforementioned attack. Could something in common with both Coffee-mate at home and the noncreamer abroad be the answer?

Upon our return, this led to a 30-day trial of Coffee-mate avoidance, which was associated with freedom of symptoms. Resumption of Coffee-mate resulted in the resumption of the problem.

Off Coffee-mate again, an attack occurred with the ingestion of vanilla ice cream.

It was then noted that a common constituent in both the coffee creamer and vanilla ice cream was the food coloring additive, annatto.

By diligently reading food labels and constantly inquiring about the content of restaurant fare, she mostly remains symptom-free while compiling an astonishingly large list of annatto-containing foods.

I know of no reports in the medical literature linking annatto to IBS.

Perhaps, by bringing her story to the attention of the GI community, annatto will be considered as a cause of IBS.

Controlled studies in IBS patient populations would seem to be of value.

Other foods that contain annatto (bixin, Bixa orellana, and bixaceae):

1. Yellow cheeses: American, Cheddar, and Velveeta. White cheddar is usually okay. Read labels.

2. Crackers: so far, Triscuit seems to be the only one I saw without annatto. Check Trader Joe's.

3. Cereals: almost all. Check the label. Rice Krispies is fine.

4. Wishbone Italian Dressing: and other commercial dressings. Read the label. Check at restaurants.

5. Light-colored ice creams: vanilla, butter pecan, vanilla swirl, chocolate chip, vanilla fudge. Some yogurts.

6. Coffee mate: To keep it white. Also Cremora. Non-dairy creamers.

7. Gourmet Mustards: French's and Heinz are ok.

8. Capsule medications and vitamins and minerals: both prescription and over-the-counter. The casing is colored.

9. Rice noodles: Pad Thai and Chinese rice noodles have it. Pure rice is fine.

10. “Artificial color” could have annatto. A “catchall” and they do not have to list annatto as it is organic.

11. Chicken bouillon cubes. Not the powder; just the cubes.

12. Commercial potato salads. Togo's potato salad listed annatto.

13. Jell-O. Sugar-free.

14. Tamales: Mexican cuisine uses it in chicken and pork dishes.

15. Crystal light mixes.

16. Pam with butter. Original is fine.

17. Cooked/roasted or barbecue chicken at grocery stores that are “ready-to-eat”. Check label. Lemon seems ok.

18. Butter. Check labels. Drawn butter in a restaurant could have it.

19. Microwave and theater popcorn.

20. “Color added” could have annatto.

21. Spreads for Italian, cheese or garlic bread. Also prepared Italian bread.

22. NutriSystem Food Plan. I called the company. Many of the foods have annatto.

23. “Rubs”. Used on barbeque ribs and chicken prior to cooking. Barbeque sauces tend not to have annatto.

24. Powdered donuts. Check all commercial pastries; even at restaurants.

Imported foods are required to list annatto but this is poorly regulated. Avoid imported products such as cheese and noodles.

Herbert L. Stein, MD (Retired)

Former Assistant Clinical, Professor Division of Allergy and Clinical Immunology UCLA, School of Medicine, Los Angeles, CA

© 2009 Lippincott Williams & Wilkins, Inc.

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