Feeding a family of four per month costs over 941 dollars in Northwestern Ontario. That's according to a recent survey done by the Northwestern Health Unit at regional grocery stores. Julie Slack is a nutritionist with the NWHU and says minimum wage and social assistance rates make it impossible for people to have a healthy diet. The health unit adds that the cost of healthy food in this years survey has gone gone up 23 dollars from last years average price of 918 dollars.