The Duchess of Sussex used to run a website called The Tig, where she shared her favourite lifestyle tips and hacks and being a famous actress, travel was a big part of her job.
In one post, she shared: "Hydrate like you're dying of thirst - because even if you're not, for your body - the thirst is real."
The former 'Suits' actress also recommended a high-strain probiotic, to help cope with eating different foods whilst abroad as well as helping with the effects of jet lag.
She added: "This dynamic duo of probiotics and agua will keep your gut health in check and honestly stave off jet lag if you're globetrotting on your travels."
And Meghan - who is expecting a baby with her husband Prince Harry - always takes her favourite scarf with her abroad.
Writing on the website, she shared: "This has become invaluable to me when catching some Zzzzzs on a flight, or feeling swaddled in a hotel room. Throw it in your purse or backpack, and no matter how far you travel, you will always feel comforted both on and off the plane with something that feels and smells like home."