The group, who rely on the Mel Milaap Day Centre, at Charing Cross in Glasgow, includes a Second World War veteran.
They are protesting against plans to move the service to the South Side of the city.
The pensioners say they went without food last Wednesday and have been left worried and upset at the prospect of leaving their "second home".
And yesterday, supported by the Association of Indian Organisations, they took their protest to George Square.
Gurmail Singh from the AIO said the campaign is starting to take it's toll on the health of the elderly people.
Chairman of the day centre user group, Gurmej Singh, 78, who was hospitalised with a heart condition on Saturday, was discharged from the Southern General to attend yesterday's protest.
He said: "I am very worried about what will happen if we have to leave the centre."
Mr Singh said: "These people feel like they are being forced to do something they don't want to do and they are very upset about it."
The users also handed in a 1500-signature petition to Glasgow City Council yesterday.
The local authority is set to withdraw the day centre service on Monday.
The council says this is because of fire safety concerns, as the building in Berkeley Street, which is also home to Mel Milaap Community Centre, does not meet health and safety regulations.
Mel Milaap caters for elderly people from the local Asian community and was one of the first ethnic minority day centres of its kind in Scotland when it opened in 1989.
The council is offering the group the use of Merrylee Lodge in the Southside of the city, which also serves as a care home, as an alternative as it is safer.
But those who use Mel Milaap, which joins on to and is owned by the Central Gurdwara Singh Sabha, say moving would take them away from their local area and places of worship.
A council spokesman said: "Our position has not changed, this centre presents a significant fire hazard to the vulnerable people who attend.
"Safety concerns were raised with the Gurdwara last year but there has been no progress on repairs.
"Anyone who declines use of the new service will have their community care needs fully assessed and an appropriate care plan put in place."