The FDA established the general Recommend Daily Intake (RDI) based on children and adults 4 years old and up. Daily Sunshine was designed with the needs of this group in mind.
While Daily Sunshine is a food (like cereal, snack foods, almond milk, etc.), children under the age of 4 are considered infants and toddlers who have their own specific dietary needs.
Just like other food choices, parents should make their own decisions based on their unique child and information from their healthcare provider.