Time course of blood bicarbonate and pH three hours after sodium bicarbonate ingestion

Int J Sports Physiol Perform. 2008 Jun;3(2):240-2. doi: 10.1123/ijspp.3.2.240.


This study examined the increase in blood pH and bicarbonate concentration after ingestion of a standard sodium bicarbonate solution. Peak blood pH and bicarbonate concentration occurred between 60 and 90 minutes. Values decreased over the remainder of the ingestion period although still elevated above preingestion levels.

Publication types

  • Clinical Trial

MeSH terms

  • Humans
  • Hydrogen-Ion Concentration / drug effects*
  • Male
  • Sodium Bicarbonate / administration & dosage*
  • Sodium Bicarbonate / metabolism*
  • Time Factors
  • Young Adult


  • Sodium Bicarbonate