For example, it was recently made public that she will have to basically cut one of her most beloved foods from her life - at least for official royal outings, if not altogether.
Meghan, who often wears her long dark locks hanging loose, wore her hair in a classic up-do, which was reminiscent of her wedding style, and kept her make up understated, showing off her natural beauty.
Meghan made a drastic departure from her more muted wardrobe choices by donning the yellow shift dress by USA designer Brandon Maxwell, who has worked as Lady Gaga's stylist since 2012.
It's the first time Meghan has worn a bright colour on an engagement with Harry since their marriage in May.
Along with her canary yellow coat and hat at Ascot, the Queen also wore a bright green coat and hat during her joint appearance with Meghan in Cheshire last month.
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"It really was most thoughtful of you and greatly appreciated by Their Royal Highnesses who send you their very best wishes".
Harry and Meghan met youths at the event to learn how they're trying to develop ideas for what the Commonwealth should represent by 2040.
The sunny look is a complete departure from her other neutral looks but going by how bright and still elegant she looked in the outfit, we can't say we mind.
Meghan Markle dazzles in yellow as she joins Prince Harry at the "Your Commonwealth" youth reception in London.
Later in the year, the Duke and Duchess of Sussex will embark on an overseas visit to Australia, New Zealand, Fiji and Tonga.