Figures released by the Department for Health shows the Conservative Government is planning a further £1.231million cut to the public health budget for Hull.
The budget pays to help improve people's health – and stop them getting ill in the first place - so there is less pressure on the NHS.
Work undertaken by public health budgets include encouraging people to exercise more, give up smoking, drink less, come off drugs and drink and avoid sexually transmitted diseases.
Hull’s Lib Dem group Leader, Councillor Mike Ross, said: "This cut will mean that local residents are less likely to make good decisions on their health, and when they do need help it is less likely to be there for them
"Liberal Democrats say these are the wrong cuts, made in the wrong way and they will end up costing the Government and the NHS more than is saved."