It's pretty strict.

We all know that being a working member of the royal family involves rules, and lot's of them. Naturally, the rules surrounding the clothes that royals wear are strict, as are the general etiquette rules. However, we never really thought about food. It turns out there are certain foods that members of the royal family can't eat, especially when they're working. So, when Kate Middleton and Meghan Markle married into the family, there were things they cut out. The Duchess of Cornwall revealed that when on official engagements, she's not allowed to eat anything that is heavy on the garlic. "Garlic is a no-no... You always have to lay off the garlic," she said, while appearing on Australian Masterchef last year. This rule was also confirmed by a former royal chef, Darren McGrady, who said that the palace chefs have to avoid too much garlic or onion. Shellfish is also off the menu for immediate members of the royal family, due to the risk of food poisoning. Foie Gras was also banned from the palace in 2008 by Prince Charles over his concerns for animal welfare. Kind soul. On another note, Queen Elizabeth apparently hates her meat to be cooked rare, and always as her's well-done (which is criminal in our opinion). There you have it, now please pass the garlic...