You can only suffer from food poisoning or other digestive issues if your Beyond Burger is expired or stale. Similarly, you can also suffer if the burger is stored inappropriately or it is contaminated. In a few cases, you might also suffer from nausea, diarrhea, and severe vomiting.Remember that, like other food items, Beyond Burgers can also become stale. However, you will not get food poisoning if the burger is good and cooked correctly.