The ICC on Monday denied that the drinking water supplied to teams was the cause of players becoming ill, but admitted to changing the supply of water as a result of an investigation.
The move follows a report from AAP on Sunday which suggested at least one team had complained to the ICC that players were suffering from gastro and this may have been linked to the bottled water supplied at match venues.
"Although there is no evidence to suggest that water was the cause of any illness, all products supplied for use in the tournament have been replaced,'' an ICC spokesman told AAP on Monday night.
New Zealand trio Dan Vettori, Tim Southee and Rob Nicol and Australia's Mitchell Starc and Brad Hogg are among those players at the tournament who've been struck down with gastro and upset-stomach dramas in the past week.
Southee received hospital treatment for dehydration.
Starc and Hogg were isolated from the Australia team on Thursday and skipped a training session but both recovered to play in Saturday night's Group B win over West Indies in Colombo.
Five South Africa players were weakened by gastro complaints but recovered to play in the Proteas' win over Zimbabwe last Thursday.