Questions Every Parent Should Ask Before Buying Baby Formula

5 min read time
Headshot of Jennifer Tabuas, a Wichita-based mass tort litigation lawyer at Morgan & Morgan Reviewed by Jennifer Tabuas, Trial Attorney at Morgan & Morgan, on September 10, 2026.
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Key Takeaways

  • Look beyond price and marketing claims when choosing formula. What matters most is whether the product meets applicable safety and nutritional standards and fits your baby’s needs.
  • Standard, generic, and imported formulas legally sold in the United States must meet applicable FDA requirements, although ingredients, preparation instructions, and formulations can still differ.
  • Check the “use by” date, packaging condition, storage instructions, and source of the product before buying, and talk with your pediatrician if your baby may need a specialized formula.
  • If your baby was born at 36 weeks gestation or earlier, was fed a qualifying infant formula or fortifier, and then developed NEC, Morgan & Morgan can review what happened and help you understand your legal options.

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Before buying baby formula, it helps to think through a few important questions. Whether you are choosing powdered, liquid, ready-to-feed, or specialized formula, the goal is to find an option that meets your baby’s nutritional needs and works for your family.

Labels, added ingredients, specialty claims, and higher prices can make one formula seem better than another, but those features do not necessarily mean a product is the right choice for your baby. Knowing what to look for can help you compare options more confidently.

 

Nutritional Quality: What’s Inside?

For most formula-fed babies, an iron-fortified infant formula is recommended. Iron is important for healthy blood and brain development, and low-iron formulas are no longer routinely marketed in the United States. Unless your pediatrician recommends otherwise, look for a formula that provides appropriate amounts of iron for your baby.

Carbohydrates provide an important source of energy in infant formula. Lactose, the natural sugar found in breast milk, is commonly used in standard formulas, but it is not the only appropriate carbohydrate source. Depending on the formula, carbohydrates may also include corn syrup solids, sucrose, maltodextrin, or modified starches. Corn syrup solids are different from high-fructose corn syrup.

Formula also contains protein and fat. Common protein sources include cow’s milk, soy, and goat’s milk, while fats may come from oils such as sunflower, safflower, canola, coconut, soybean, or palm oil. Different formulas use different combinations depending on how the product is designed and the needs it is intended to meet.

Most babies can tolerate standard cow’s-milk-based formula. However, babies with a cow’s-milk protein allergy, certain digestive conditions, or other medical needs may require a specialized formula. Cow’s-milk protein allergy is different from lactose intolerance, so talk with your pediatrician before switching formulas because of suspected feeding problems.

 

Cost, Quality, and Specialty Brands

Parents are often trying to balance wanting the best for their baby with the realities of cost. The reassuring news is that infant formulas sold in the United States must meet FDA nutritional quality and safety requirements. Imported formulas legally marketed in the U.S. must also meet applicable standards, and they are not inherently better simply because they are imported or more expensive.

Powdered formula is generally less expensive and can be stored unopened in a cool, dry place until the “use by” date on the label. Once opened, powdered formula typically should be used within about one month, although you should always follow the manufacturer’s instructions. Powdered formula is not sterile, so careful preparation, storage, and handling are important.

Liquid concentrate and ready-to-feed formulas are typically more expensive but can be more convenient. Both are manufactured to be sterile before opening, and ready-to-feed formula requires no mixing with water. These options may be especially useful for babies at higher risk of infection or when safe formula preparation is more difficult.

Store-brand and generic formulas must meet the same applicable FDA nutrient requirements as name-brand formulas sold in the United States. However, ingredients and formulations can still differ, so compare labels and preparation instructions rather than assuming two products are identical.

Specialty formulas are designed for babies with particular medical or nutritional needs, such as certain allergies, metabolic conditions, digestive disorders, or low birth weight. If you believe your baby needs a specialized formula, talk with your pediatrician about which option may be appropriate.

 

Storage Questions

Infant formula containers include a “use by” date on the label. Powdered, liquid concentrate, and ready-to-feed formulas should not be used after that date, even if the container has never been opened. When purchasing formula, it can help to consider how much your baby typically uses so you do not buy more than you are likely to need before the expiration date.

Unopened powdered formula should be stored indoors in a cool, dry place until the “use by” date. Avoid storing formula in garages, vehicles, outdoor areas, or other places where it may be exposed to excessive heat, moisture, or contamination. If a container is damaged or the formula looks or smells unusual when opened, do not use it.

Unopened liquid concentrate and ready-to-feed formulas can generally be stored at room temperature until the “use by” date, as long as the label does not instruct otherwise. Once opened, refrigerate any unused portion promptly and follow the manufacturer’s instructions for how long it can be safely stored.

After preparing formula, use it within two hours or refrigerate it immediately and use it within 24 hours. Once your baby begins drinking from a bottle, use the formula within one hour and discard anything that remains after the feeding.

 

Things to Look Out For

When buying baby formula, check the product carefully before bringing it home. Important warning signs can include:

  • Formula that is past the “use by” date
  • Opened containers or damaged packaging
  • Leaking, bulging, rusted, or otherwise compromised containers
  • Changes in the formula’s color, smell, or appearance
  • Products from sellers or sources that make it difficult to verify where the formula came from or whether it was properly stored and handled

Be especially cautious when purchasing formula through unfamiliar third-party sellers or directly from overseas sources. Imported formula can be legally sold in the United States, but products marketed here must meet applicable FDA requirements. Formula obtained through unofficial channels may not meet those requirements or may have labeling, preparation, or storage instructions that differ from U.S. standards.

Homemade infant formula is also not recommended. Homemade recipes have not been evaluated by the FDA for safety or nutritional adequacy and may contain too much or too little of the nutrients babies need.

Parents should choose formula based on their baby’s nutritional needs and appropriate medical guidance. If your baby was born at 36 weeks gestation or earlier, was fed a qualifying infant formula or fortifier shortly after birth, and then developed necrotizing enterocolitis (NEC), Morgan & Morgan can review what happened and help you understand your legal options. Contact us today for a free case evaluation.

Disclaimer
This website is meant for general information and not legal advice.