One Voice Blackburn is inviting non-Muslims to fast for one day, for the community project.
People from Lancashire Fire and Rescue Service, Pleckgate High School, Lancashire Mind, East Lancashire Hospitals Trust and many members of the public are among those who are taking part.
‘I’m not a Muslim but I will fast for one day’ is now in its seventh year.
Ramadan is the holy Islamic month where Muslims forgo food and water between sunrise and sunset.
This year Ramadan in the UK consists of a 16 and a half hour fast, having started on April 13 and ending on May 11.