The term "fussy eater" refers to a child or an adult who is very particular about what they eat and are often hesitant, picky or refuse certain foods. They may have strong dislikes for specific textures, colors, tastes or smells of certain food items, leading them to avoid consuming those foods altogether. Fussy eaters can be a challenge for parents and caregivers as they struggle to get their children to eat healthily and maintain proper nutrition.