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Effect of decaffeination of coffee or tea on gastro-oesophageal reflux.
Aliment Pharmacol Ther 1994; 8(3):283-7AP

Abstract

BACKGROUND

Coffee and tea are believed to cause gastro-oesophageal reflux; however, the effects of these beverages and of their major component, caffeine, have not been quantified. The aim of this study was to evaluate gastro-oesophageal reflux induced by coffee and tea before and after a decaffeination process, and to compare it with water and water-containing caffeine.

METHODS

Three-hour ambulatory pH-metry was performed on 16 healthy volunteers, who received 300 ml of (i) regular coffee, decaffeinated coffee or tap water (n = 16), (ii) normal tea, decaffeinated tea, tap water, or coffee adapted to normal tea in caffeine concentration (n = 6), and (iii) caffeine-free and caffeine-containing water (n = 8) together with a standardized breakfast.

RESULTS

Regular coffee induced a significant (P < 0.05) gastro-oesophageal reflux compared with tap water and normal tea, which were not different from each other. Decaffeination of coffee significantly (P < 0.05) diminished gastro-oesophageal reflux, whereas decaffeination of tea or addition of caffeine to water had no effect. Coffee adapted to normal tea in caffeine concentration significantly (P < 0.05) increased gastro-oesophageal reflux.

CONCLUSIONS

Coffee, in contrast to tea, increases gastro-oesophageal reflux, an effect that is less pronounced after decaffeination. Caffeine does not seem to be responsible for gastro-oesophageal reflux which must be attributed to other components of coffee.

Authors+Show Affiliations

2nd Medical Department, München-Bogenhausen Hospital, Germany.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

7918922

Citation

Wendl, B, et al. "Effect of Decaffeination of Coffee or Tea On Gastro-oesophageal Reflux." Alimentary Pharmacology & Therapeutics, vol. 8, no. 3, 1994, pp. 283-7.
Wendl B, Pfeiffer A, Pehl C, et al. Effect of decaffeination of coffee or tea on gastro-oesophageal reflux. Aliment Pharmacol Ther. 1994;8(3):283-7.
Wendl, B., Pfeiffer, A., Pehl, C., Schmidt, T., & Kaess, H. (1994). Effect of decaffeination of coffee or tea on gastro-oesophageal reflux. Alimentary Pharmacology & Therapeutics, 8(3), pp. 283-7.
Wendl B, et al. Effect of Decaffeination of Coffee or Tea On Gastro-oesophageal Reflux. Aliment Pharmacol Ther. 1994;8(3):283-7. PubMed PMID: 7918922.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of decaffeination of coffee or tea on gastro-oesophageal reflux. AU - Wendl,B, AU - Pfeiffer,A, AU - Pehl,C, AU - Schmidt,T, AU - Kaess,H, PY - 1994/6/1/pubmed PY - 1994/6/1/medline PY - 1994/6/1/entrez SP - 283 EP - 7 JF - Alimentary pharmacology & therapeutics JO - Aliment. Pharmacol. Ther. VL - 8 IS - 3 N2 - BACKGROUND: Coffee and tea are believed to cause gastro-oesophageal reflux; however, the effects of these beverages and of their major component, caffeine, have not been quantified. The aim of this study was to evaluate gastro-oesophageal reflux induced by coffee and tea before and after a decaffeination process, and to compare it with water and water-containing caffeine. METHODS: Three-hour ambulatory pH-metry was performed on 16 healthy volunteers, who received 300 ml of (i) regular coffee, decaffeinated coffee or tap water (n = 16), (ii) normal tea, decaffeinated tea, tap water, or coffee adapted to normal tea in caffeine concentration (n = 6), and (iii) caffeine-free and caffeine-containing water (n = 8) together with a standardized breakfast. RESULTS: Regular coffee induced a significant (P < 0.05) gastro-oesophageal reflux compared with tap water and normal tea, which were not different from each other. Decaffeination of coffee significantly (P < 0.05) diminished gastro-oesophageal reflux, whereas decaffeination of tea or addition of caffeine to water had no effect. Coffee adapted to normal tea in caffeine concentration significantly (P < 0.05) increased gastro-oesophageal reflux. CONCLUSIONS: Coffee, in contrast to tea, increases gastro-oesophageal reflux, an effect that is less pronounced after decaffeination. Caffeine does not seem to be responsible for gastro-oesophageal reflux which must be attributed to other components of coffee. SN - 0269-2813 UR - https://www.unboundmedicine.com/medline/citation/7918922/Effect_of_decaffeination_of_coffee_or_tea_on_gastro_oesophageal_reflux_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&amp;sid=nlm:pubmed&amp;issn=0269-2813&amp;date=1994&amp;volume=8&amp;issue=3&amp;spage=283 DB - PRIME DP - Unbound Medicine ER -