Stoked contains piperine, which aids absorption in the intestine(s). It's not necessary to take with food.
Do you have Designer Supps AX or Driven Sports AX? The Driven Sports version has an Extended Release Technology, which allows it to now be taken twice daily, same as Stoked. I don't think it's necessary to take with food either, but a DS rep or another member will have to confirm that for you.
Usually the labels of most products will specify if it's necessary to take with or without food. If it's not mentioned, it's likely okay either way. FWIIW, the piperine in Stoked will actually aid in the absorbtion of nutrients and phytochemcals. It should help in the absorbtion of any other plant based products that are taken with it!