Dr. Blatt
According to the AAP, exclusively breastfed infants should receive supplementation with this vitamin beginning shortly after birth.
Vitamin D
The AAP recommends 400 IU/day to prevent vitamin D deficiency and nutritional rickets.
Prepared infant formula should generally be discarded after this amount of time at room temperature.
2 hours
Formula left at room temperature has increasing bacterial contamination risk.
This standard infant formula contains intact cow milk proteins and added HMOs intended to more closely resemble breast milk composition.
Enfamil NeuroPro
HMOs are added to support gut and immune health.
This oral rehydration solution uses sodium-glucose cotransport to enhance intestinal water absorption during diarrheal illness.
Pedialyte
Oral rehydration therapy works through coupled sodium and glucose absorption in the small intestine.
Whole cow’s milk should generally not be introduced before this age according to the AAP.
12 months
Early introduction increases risk of iron deficiency anemia and excessive renal solute load.
This formula is marketed for gas and fussiness using partially hydrolyzed whey proteins but is NOT appropriate for true cow milk protein allergy.
Enfamil Gentlease
Partial hydrolysis may improve tolerance but still contains antigenic cow milk proteins.
This thickened formula may be trialed before acid suppression medications in thriving infants with uncomplicated reflux.
Enfamil A.R.
Thickened feeds may reduce visible regurgitation frequency in physiologic reflux.
This formula category is considered first-line management for most infants with non-IgE mediated cow milk protein allergy. Name an example of the formula.
Extensively hydrolyzed formula
Includes Nutramigen and Alimentum.
This pediatric supplement is commonly used for failure to thrive and oral caloric supplementation in toddlers and older children. Name one example.
PediaSure or Boost Kid Essentials
These are supplements, not infant formulas.
During the early 1900s, evaporated milk formulas commonly resulted in this nutritional deficiency due to lack of fortification.
Iron deficiency anemia
Iron fortification significantly reduced infant nutritional anemia.
This extensively hydrolyzed formula has a ready-to-feed formulation that contains no corn.
Alimentum Ready-to-Feed
Important pearl for infants with concomitant corn sensitivity concerns.
This amino acid–based formula category contains free amino acids rather than peptides and is used after failure of extensively hydrolyzed formulas. Name one example.
EleCare, Neocate, or PurAmino
Amino acid formulas are considered elemental nutrition.
This pediatric peptide-based formula is commonly used in children with malabsorption, feeding intolerance, or tube-feeding dependence.
Kate Farms Pediatric Peptide
Peptide formulas contain partially broken-down proteins for easier absorption.
Over-dilution of infant formula most classically predisposes infants to this dangerous electrolyte abnormality.
Hyponatremia
Can lead to seizures from water intoxication.
Introduction of DHA and ARA into infant formulas was primarily intended to support development of these two organ systems.
Brain and retina
DHA and ARA are important for neurodevelopment and retinal maturation.
Why is Enfamil Gentlease NOT considered appropriate treatment for true cow milk protein allergy despite being marketed as “gentle”?
It still contains antigenic cow milk proteins
Partial hydrolysis decreases protein size but does not eliminate allergenicity.
Why might thickened formulas such as Enfamil A.R. reduce visible spit-ups without significantly reducing true reflux episodes?
They decrease regurgitation volume rather than acid reflux frequency
Thickened feeds improve symptoms mechanically but do not fundamentally change LES physiology.
This metabolic disease directly contributed to development of lactose-free and soy-based infant formulas.
Galactosemia
Infants with galactosemia cannot metabolize galactose derived from lactose.
The 2008 melamine contamination crisis involving infant formula occurred primarily in this country.
China
Melamine adulteration caused kidney injury and nephrolithiasis in thousands of infants.
During the 2022 US infant formula shortage, closure of this manufacturing plant significantly worsened national supply shortages.
Abbott Laboratories
The Sturgis plant closure exposed vulnerabilities in the US formula supply chain.
An infant with severe CMPA improves on Alimentum Ready-to-Feed after failing powdered Alimentum. What ingredient difference may explain this?
Absence of corn in the ready-to-feed formulation
Powdered formulas may contain corn derivatives that some infants additionally react to.
Why are amino acid formulas not recommended as first-line therapy for most infants with CMPA despite superior allergen elimination?
High cost and most infants tolerate extensively hydrolyzed formulas
Guidelines recommend stepwise escalation because ~ 90% tolerate hydrolyzed formulas.
Why might soy formula be a poor choice in infants younger than 6 months with cow milk protein allergy?
Significant rate of concomitant soy protein intolerance
Cross-reactivity is more common in younger infants with CMPA.
Why are peptide-based formulas such as Kate Farms generally more palatable than elemental formulas?
They contain peptides rather than free amino acids
Free amino acids produce stronger metallic and bitter taste profiles.
Why are medium-chain triglycerides frequently added to formulas for cholestatic liver disease or severe malabsorption?
They bypass normal bile-dependent fat absorption pathways
MCTs are absorbed directly into the portal circulation and improve fat absorption.