Drop Down Lists - Depending on other cell values

Hey guys, new to the forum and looking for some help!

I have a workbook with several drop down boxes and formulas already set up and working. I want to improve it though. My question is.... is there a formula that will make the drop down list change based on a cell value....

For example: If B6 equals vegetables then C6 equals list (potato, carrot, pea, etc.) If B6 equals fruit then C6 equals list (apple, banana, grape)

Would love some advice and help!! thanks!