4 year old refuses all fruits and vegetables in any form?

What the evidence says

Refusing all fruits and vegetables at age 4 is a common stage, not usually a sign that something is wrong. Canadian paediatric guidance explains that most young children brought in for food refusal are healthy and eating enough for their growth, even though parents worry.

The division of responsibility is the key idea doctors and dietitians recommend. Your job is to decide what, when and where food is offered. Your child's job is to decide whether and how much to eat from what's offered. Pressuring, punishing, bribing or forcing a child to eat a food often makes them dislike it more, not less.

Repetition without pressure works better than pressure. Research shows children may need to see or taste a new food many times, sometimes ten to fifteen times or more, before they accept it. Offering small tastes alongside foods they already like, eating the same foods together as a family, and letting your child help wash, cut or prepare fruits and vegetables can all increase the chance they'll eventually try them.

Some day-to-day tricks that Canadian dietitians suggest include changing how the food is prepared (raw versus cooked, grated versus sliced), serving vegetables with a dip like hummus or yogurt, keeping cut fruit visible and easy to grab, and avoiding becoming a short-order cook who makes separate meals for a picky eater.

If your child seems to be losing weight, has very few accepted foods overall (not just fruits and vegetables), gags or chokes often, or you're worried about their growth or nutrition, it's worth talking to your doctor or a registered dietitian. They can check growth and rule out other causes, and can help build a plan if the pickiness feels bigger than a normal phase.