Gabriela Peacock, who counts several of the young royals as clients, believes that even the smallest of changes can have huge results.
“Biochemistry is so powerful — you can really change someone’s well-being in just a week,” she tells PEOPLE, but adds, “It has to be easy otherwise it’s not sustainable.”
That’s the premise behind her new book 2 Weeks to Feeling Great, which advocates for intermittent fasting, supplements and minor tweaks to what you eat and when you eat it.
Beatrice, who is godmother to Peacock’s daughter Iris, is such a fan, she has even endorsed
the book saying it’s principles “are effective and realistic guidelines to follow no matter what you are doing in the day.” Peacock says the royal mom-to-be, who announced her pregnancy last month, has never looked better. “She looks amazing, just super happy, and they are all fantastic — it’s great news!”
Though Peacock hasn’t put the princess on a special maternity diet regiment, she says that, “like all friends, I try and be helpful, no matter what kind life changes they go through.” She adds, “I talk about nutrition, all the time, so I think it slightly rubs off on my friends!” Can’t get enough of PEOPLE’s Royals coverage?
The Czech-born nutritionist, who studied for more than nine years before working with Queen Elizabeth’s physician Sir Tim Evans, said she felt compelled to write the book after she could no longer keep up with client appointments during the first lockdown last year.