time even after that sell by date. those are just two examples, eggs can be consumed three to five weeks after purchase. and a box of mac and cheese with a sell by of 2013 should be fine in a march 2014. you can find more on the report at cnn.com/health. when you have diabetes like i do, getting the right nutrition isn't always easy. first, i want a way to help minimize my blood sugar spikes. then, a way to support heart health. ♪ and let's not forget immune support. ♪ but now i have new glucerna advance with three benefits in one.