7 foods you should avoid before flying

When you have a long flight ahead, the last thing you want is your stomach to feel upset or uneasy. With the right diet choices, you can sidestep discomfort when you’re in the air. To stick with good-for-you foods that also make you feel good, skip this list of seven items, and stock up on a few others instead.

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These cruciferous veggies definitely fit the bill in terms of health benefits – but they can also make you gassy, says dietitian Caroline Passerello. A common cause of bloating in many people, these greens and whites pack lots of fibre and a type of sugar known to cause gas, called raffinose, according to the International Foundation for Gastrointestinal Disorders (IFFGD). And that could make you an unpleasant seat-mate once you’re in the air.

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“Because of the change in altitude and breathing patterns, flying can cause dehydration,” says Passerrello. Alcohol will only add to that. Another problem: consuming spiked beverages can also leave you exhausted post-flight. “Although alcohol may make you feel sleepy initially, alcoholic beverages could cause disturbed sleep, preventing you from feeling rested when you land,” adds dietitian Bonnie Taub-Dix.

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Your best bet is to skip the coffee or caffeinated tea when in flight, as these can also dehydrate you. If you do have either, Passerrello suggests making sure you drink even more water to keep up your liquid levels. “Caffeine is also a stimulant and could keep you from catching up on important sleep time while in flight,” says Taub-Dix. What’s more: because it’s a diuretic, caffeine can make you pee more, which can keep you up if you’re trying to sleep. (Or disturb others around you!)

According to IFFGD, foods also high in certain carbohydrates (sugars specifically) can lead to gas. Lactose (in dairy products) can cause discomfort for some people, as can fructose (found in onions, artichokes, pears and wheat) and sorbitol (found in fruits like apples, peaches and prunes, and sugar-free snacks).

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Filled with insoluble fibre, foods like beans, lentils and chickpeas can cause bloating and gas in many people thanks to their digestive process, says the IFFGD.

Read on to find out about the link between complex carbohydrates and fibre.

You might feel like you want to fill up on a burger and fries or a plate of pasta before you get on a plane, but that’s probably not your best idea. A belly full of dense foods can potentially upset your stomach, says Taub-Dix.

You want to feel full but not completely stuffed, says Taub-Dix. Overeating can lead to an upset stomach and gas production – neither of which you want to experience on a packed plane.

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“There are a lot of portable snacks that can hold you over until you land and become even more important should you get delayed,” says Passerrello, who suggests foods like unsweetened dried fruit, unsalted nuts, tuna or chicken pouches, dried edamame, or dry cereal. “Personally, my go-to carry-on has a hard case for glasses and I re-purpose that space for keeping a small banana so it doesn’t get smashed,” she says.

“Pair wholegrain carbs with protein and healthy fat to keep blood sugar levels stable and help you feel satisfied,” says Taub-Dix. Some solid options: almond butter on wholegrain crackers or trail mix made with unsalted nuts and dried fruit – both of which you can pack before you even get to the airport. Or try protein bars that are loaded with prebiotics to help your digestion.

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