She is the mother of three children, works for children's charities and otherwise Duchess Kate (40) has her hands full!Despite this, the 40-year-old still finds time to cook for herself and her family in her packed schedule.The Duchess of Cambridge attaches great importance to one thing: healthy nutrition. In the video we reveal what is on her daily menu.Duchess Kate kept fit even when she was at school: she was a cross-country skier, played tennis and hockey and went skiing.Even today, sport is extremely important for 40-year-olds.She regularly goes jogging, does yoga and lifts weights.It goes without saying that such an active lifestyle requires a healthy diet.That's why Kate's morning, according to "Mail Online", starts with a lot of vitamins: with a green smoothie made from a mixture of kale, spirulina, matcha, spinach, romaine lettuce, coriander and blueberries.From time to time, the royals also have solid food for breakfast.For example, a bowl of oatmeal.At lunchtime, Kate likes to eat salads, tabbouleh or ceviche.A watermelon and feta salad is said to be her favorite.In the evening it gets a little heartier in Kensington Palace: Cheese spaetzle or fried chicken are served, for example.Incidentally, the latter is the favorite dish of Prince William (40), Kate and their children, Charlotte (7), George (9) and Louis (4).However, anyone who thinks that the royal family would be entertained by a chef is wrong!The royal culinary delicacies are all conjured up by Duchess Kate herself.Former royal chef Carolyn Robb also revealed to Racked magazine: "Kate is cooking quite a bit at the moment.She comes from a normal environment and a normal home where she has always cooked for herself.”The good genes have probably also spilled over to the next generation: Kate's children are just as passionate about the kitchen as their mother.In an interview, Matthew Kleiner-Mann, executive director of the Ivy Learning Trust, told reporters: "She told us how her children love to cook and how they cook for them. The other day they made cheese spaetzle. One stirs the flour, one gives it milk and the butter in."The royals are just a normal family behind closed doors.(cre)Photos: Splash News, WENN Entertainment, GettyImages, dpa