MP Dan Jarvis has written to the Prime Minister to tell him about the alarming number of people using food banks in Barnsley.
Mr Jarvis visited the Gateway Church food bank last Thursday and said it was clear from talking to those running the food bank that the need for charitable support will become greater and greater as people's circumstances become increasingly desperate.
In the letter Mr Jarvis said the efforts of Pastor Mark Reasbeck and volunteers were inspiring and the care and compassion they showed for disadvantaged people was deeply moving.
But he said the increasing number of people using food banks was a cause for deep concern and that no individual should have to rely on charity to feed themselves and their families.
"April will be a very tough month for many people in Barnsley as changes to welfare kick-in," he said. "The introduction of the universal credit and the impact of changes to working tax credits combined with the 'bedroom tax' mean that many people will be unfairly penalised."
Nationally, the number of people supported by food banks has grown from 2,800 in 2005-06 to more than 128,000 in 2011-12, while Britain’s largest network of food banks, the Trussell Trust, predicts that they will need to support in excess of 260,000 people over the next year.