Proton pump inhibitors reduce the bioavailability of dietary vitamin C

@article{Henry2005ProtonPI,
  title={Proton pump inhibitors reduce the bioavailability of dietary vitamin C},
  author={E Henry and A. Carswell and Angela A. Wirz and V Fyffe and Kenneth E. L. McColl},
  journal={Alimentary Pharmacology \& Therapeutics},
  year={2005},
  volume={22}
}
Background : The gastric juice concentration of vitamin C is reduced in subjects with elevated intragastric pH. This is probably because of the fact that the vitamin is unstable at non‐acidic pH and undergoes irreversible denaturation. 
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