7. No shellfish for the family.

Reason: There is an excessive risk of food poisoning.
King Charles III is an exception; he occasionally can’t resist
Food poisoning, a condition that can result in cramping, nausea, vomiting, and a plethora of other unpleasant symptoms, is primarily caused by shellfish and rare meat. Food poisoning can be deadly in extreme circumstances, especially for the elderly or sick.

The family is unable to eat shellfish. ©Getty Images/PPool
The Royal Household generally avoids shellfish and raw meat due to their propensity to cause illness, even if this is not a strict “law.” Still, rumors claim that King Charles III sometimes gives in to the temptation of these unhealthy foods.