Tuna Casserole

Tuna casseroles may be tasty, but they’re also one of the most dangerous foods you can eat. This dish is so bad for your health because it contains raw eggs and mayonnaise. If these ingredients are not heated up enough, illness-causing bacteria like salmonella will form! It would be best if you always reheated tuna casseroles to steaming before eating again–you’ll know that it’s done when steam rises from inside.
Salads

Salads are a good source of nutrients, but, unfortunately, they can contain bacteria that will make you very sick. You should never eat salads that have been sitting out at room temperature for more than two hours because the large amounts of leafy greens in them provide an ideal environment for E-coli to grow. To avoid getting sick from salmonella or E-coli, always wash your lettuce with water before eating it and keep salad dressing on the side, so nobody double-dips into what’s inside the container.
Fish & Seafood

Did you know raw fish contains high levels of bacteria? This is because raw fish comes straight from the sea, which might be contaminated with harmful toxins. Seafood should always remain refrigerated unless consumed within one to two days after purchase. Also, remember that you must also keep all cooked seafood under 40 degrees Fahrenheit at most! If you see any strange smells, then throw your food away immediately–you don’t want to risk getting sick for no reason.
Rice

Rice is a delicious Asian side dish, but it’s also one of the most dangerous foods out there because it can quickly grow bacteria if left at room temperature for too long. You should never leave cooked rice in your fridge any longer than two days after cooking it–and you definitely don’t want to risk eating cold rice that has been sitting around either!
Chicken

Chicken is a delicious source of protein, but it can also be one of the deadliest foods you’ll ever eat if not appropriately cooked. This includes being kept at room temperature for more than two hours after cooking. If your chicken starts to smell off or sprout any odd colors, then throw it away immediately because that means they’re growing bacteria and getting ready to make someone sick! Make sure all leftovers are thrown out immediately as well–you don’t want to risk eating something bad by accident.
Fruit & Vegetables

You should consume all vegetables and fresh fruit within 48 hours of purchase or cooking. This is just a general rule for all types of products because they’re susceptible to bacteria from being moist, and you don’t want to get sick from eating rotten food!
Conclusion
It’s important to always take good care of your food by making sure you throw leftovers out immediately, and you never eat anything that looks, smells, or tastes bad. Never leave cooked foods at room temperature for too long because this will give deadly bacteria like salmonella the chance to grow, and nobody wants to get sick! Also, keep in mind that eating food that is over 40 degrees Fahrenheit will increase your chances of getting sick by 800%, so keep all leftovers under this temperature at most.