Drugstores are trying to change they way you stock up on food supplies. They want you to first shop from them before you head to the grocery store.

Drugstore chains like CVS and Walgreens have jumped into the grocery market by selling everything from fresh produce to sushi.

Walgreens has added groceries to stores located in what they call food deserts -- areas without any nearby grocery stores.

And though food prices at drugstores might run a little higher than grocery stores, experts say when sales come around you could save big.

"The drug stores offer lots of store incentives and that's what makes them different than the grocery stores and big box chains. Some of my best grocery deals have come from drug stores," explained Chrissy Pate, the co-founder of Becentsable.net.

"I think they're pleasantly surprised that we have great pricing on the key items that they are looking for," said J.P. Larson, the CVS district manager for Kansas City, Mo.

Like grocery stores, many drugstores also offer special rewards cards for even more savings.