6 Airplane Meals You Should Never Eat, Experts Warn

1 | Raw Fruit and Vegetables

Nothing is wrong with wanting to eat healthy while you're traveling. Unfortunately, experts warn the salad or diced fruit being served on your flight could potentially get you sick.

"When it comes to airline food, the more processed and cooked it is, the safer it is for avoiding food illness. This fact is not helpful for dieting, but it is good practice for eating out in general," Maria Hanson, a health expert with InsuranceProviders.com, tells Best Life. "Leafy greens are constantly on the list of recalled food items due to Salmonella and E. coli contamination. Sprouts are another prolific culprit in the food poisoning rankings, and tomatoes and celery often pop up in recalls. So skip the salads and opt for well-cooked food if your goal is to avoid food poisoning," she recommends.

However, there is still a way to snack on produce with less risk. "If you do want some fruits or veggies, look for something with a peel that you can remove, like an orange or a banana, or something in a can or a sealed container, "Dible says.

2 | Shrimp

The option of chicken or fish on flights might seem like a dated cliche. But when it comes to seafood served on airplanes, shrimp can sometimes still make its way on the menu. "All seafood, but in particular shrimp and oysters, are pretty darn dangerous," Dible told CNBC, adding that "they serve a lot of shrimp aboard first-class."

However, if you're given the option, you might want to pass on the shellfish while you're dining in the sky: According to a 2015 study conducted by Consumer Reports, 60 percent of frozen shrimp sampled in a laboratory contained harmful Salmonella, Vibrio vulnificus, listeria, or E. coli bacteria, making it a particularly risky plane food.

3 | Ice

While ice may not technically be part of your meal, there's a good chance you'll be enjoying a beverage alongside it. And even though ice is usually delivered instead of being made onboard using the bacteria-laden water from the plane's tanks, experts warn that it can still be downright dirty due to how the flight crew handles it during service and how rarely ice bins get sanitized.

"A common overlooked risky airplane food is the ice that comes with cold drinks. It can be a source of foodborne illness due to how many different people handle it, increasing the risk of contamination," Holly Klamer, MS, a Michigan-based Registered Dietitian Nutritionist (RDN) and writer, tells Best Life. "Ask for your cold beverages in a can or bottle without ice to avoid taking the risk."

4 | Rice

As a staple grain and one of the most widely consumed foods on the planet, it's no surprise that rice often finds its way onto airline menus. Unfortunately, it can be dangerous when it isn't kept warm enough after cooking, allowing Bacillus cereus bacteria spores to grow and turn the dish into something that can make you quite ill.

According to an anonymous post on the foodborne illness forum IWasPoisoned.com, a passenger flying from Accra, Ghana to Houston, Texas on a United Airlines flight became sick mid-flight due to rice. "I was the only passenger in first class to eat the vegan meal. The rice smelled odd, but I had already taken a bite," the passenger reports. "I was so nauseous all flight but eventually vomited...By the time we landed, I had to be taken via ambulance from the tarmac to the hospital."

5 | Dairy

It's not at all uncommon for airlines to serve dairy along with their in-flight meals, whether it's yogurt at breakfast or a cheese appetizer with dinner. Unfortunately, experts warn that dairy products are particularly sensitive to issues during transportation and can quickly spoil.

In the case of some products, it can also be impossible to tell when it's turned to the point of being dangerous to eat due to bacteria such as listeria. "You can't see anything—there's no odor, nothing you can see. It's invisible," Dible told CNBC.

6 | Meats

Whether you're vegetarian on land or not, you may want to consider going without meat during your flight. Chicken, beef, and pork items can sometimes cause food poisoning when not cooked to the correct temperatures. Since meals go out en masse, it's not always likely that a flight attendant will notice if a meat dish was improperly prepared or cooked.

"You have to rely often on getting something steaming hot that looks to you well-cooked," Patricia Griffin, MD, chief of the Center for Disease Control and Prevention's (CDC) Enteric Diseases Epidemiology branch, told the AARP. "A thermometer is best. But cooking your meat products really well is very important."

But it's not just hot dishes you should be wary of: deli meats and cold cuts can also be potentially dangerous if not stored properly or become cross-contaminated during plating or preparation. If you're unsure or just unwilling to take the risk, you may want to opt for a bag of pretzels instead of that turkey sandwich that's being served.

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