Orange juice is many people's go-to secret weapon when it comes to immunity enhancing, and for good reason. Orange juice is not only tasty, but it is loaded with vitamin C.
Since the American Academy of Pediatrics recommends limiting fruit juice to a maximum of 4 oz per day for toddlers, leaning on the whole fruit instead of the juice version is a better idea for this age group. From clementines to the classic orange, citrus choices appear to be plenty, and plenty delicious. Just make sure seeds are removed before serving. You may also want to remove the membranes of the fruit depending on your little one's abilities.