Products marketed as toddler drinks sit beside infant formula in American stores, in similar packaging from the same brands. They belong to a different regulatory category, and the difference is substantial.
Infant formula is defined in federal law
Infant formula is a regulated food category with statutory nutrient requirements, mandatory quality control procedures, and specific manufacturer registration and reporting obligations.
Those requirements exist because formula may be an infant's sole source of nutrition, so composition cannot be left to a manufacturer's discretion.
Products sold as infant formula must meet the specified nutrient levels and are subject to the associated inspection and recall framework.
Toddler drinks are ordinary foods for regulatory purposes
Drinks marketed for children beyond infancy are not intended as a sole source of nutrition and are therefore not covered by the infant formula requirements.
They are regulated as conventional foods, subject to general food safety and labeling rules rather than a defined compositional standard.
The practical result is that composition varies considerably between products, since there is no single specification they are all built against.
Packaging similarity is a real source of confusion
Toddler products often share branding, color schemes and shelf position with a manufacturer's infant formula line, presented as a next stage.
Stage numbering reinforces the impression of a continuous product family with continuous oversight, which the regulatory categories do not support.
Reading the label is what distinguishes them, since the category and the intended age appear there rather than in the visual design.
Nutrition bodies have questioned the category
Pediatric and nutrition organizations have generally not identified a nutritional need for these products in healthy children eating a varied diet.
Concerns raised have centered on added sugars in some products and on displacement of foods and drinks that would otherwise be consumed.
Positions and labeling practices in this area have been actively discussed and revised, so current published guidance is the appropriate reference.
Where the individual answer comes from
Specialized formulas do exist for children with particular medical conditions, and those are used under clinical direction rather than chosen from a shelf.
Feeding transitions after infancy vary with growth, medical history and diet, which is why a general product category cannot answer an individual question.
A pediatrician or a registered dietitian is the appropriate person to consult about what a specific child should be drinking.