CDC warns families to stop using recalled ByHeart infant formula amid infant botulism outbreak

U.S. health officials are warning families to avoid using ByHeart Whole Nutrition infant formula as an investigation continues into infant botulism cases linked to exposure to the product. In an update dated January 23, 2026, the Centers for Disease Control and Prevention (CDC) reiterated that parents and caregivers should stop using any ByHeart Whole Nutrition infant formula immediately. The guidance includes all lot numbers and all sizes, including both cans and single-serve packets, and emphasizes that the product had been sold online and through major retailers nationwide.

Infant botulism is rare but can be extremely serious, and early symptoms can be subtle. The CDC advised caregivers to seek immediate medical attention if an infant consumed the recalled formula and shows warning signs such as poor feeding, loss of head control, or difficulty swallowing. Because infant botulism affects nerves and muscle control, symptoms can progress, and rapid evaluation is important. Families are also advised to wash items and surfaces that may have contacted the formula using hot soapy water or a dishwasher.

The Food and Drug Administration (FDA) has also posted information about the ongoing investigation and recall activity, including warnings that recalled formula may still appear on store shelves in some locations and should not be purchased or used. Public health agencies have stressed that families should follow recall instructions and watch for symptoms, while investigators continue to determine the outbreak’s scope, exposure pathways and any remaining risks. Officials also emphasize that caregivers should rely on official sources for updates as guidance may change with new laboratory and epidemiological findings.

• Do not use any ByHeart Whole Nutrition infant formula (cans or packets).
• Clean bottles, scoops, prep surfaces and other items that may have touched the formula.
• Seek urgent care if symptoms appear (poor feeding, difficulty swallowing, loss of head control).

The CDC’s notice is part of a broader public-health response that typically involves coordination with state and local health departments, clinicians and specialized treatment resources. Care teams may evaluate symptoms, confirm diagnoses and arrange botulism antitoxin treatment when appropriate. Because infants can deteriorate quickly if breathing muscles are affected, the CDC’s guidance emphasizes not waiting to “see if it passes” when neurological symptoms appear.

For families affected by the recall, pediatricians can advise on safe alternatives and feeding plans. Caregivers who are uncertain whether a formula product is included in the recall should consult the CDC and FDA recall pages and contact their healthcare provider. Health agencies continue to post updates as the investigation proceeds, including reminders to avoid using the recalled formula even if it is mistakenly found for sale. The central message from officials remains consistent: stop using the product immediately and seek care quickly if symptoms develop.