Infant botulism outbreak linked to infant formula

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OSDH shares what parents and caregivers need to know

OKLAHOMA CITY - The Oklahoma State Department of Health (OSDH) is urging parents and caregivers to be aware of a recall of ByHeart Whole Nutrition infant formula product, which have been linked to a botulism outbreak.

There have been no cases of botulism connected to this outbreak reported so far in Oklahoma. Nationwide, as of Nov. 14, 2025, over 20 infants in 13 states are suspected or confirmed to have infant botulism after exposure to ByHeart infant formula.

If you have purchased any ByHeart Whole Nutrition infant formula, OSDH says you should stop using it immediately. This includes all lot numbers and all sizes of cans and single-serve packets.

If possible, take a picture or record the lot number and best-by date. If you have leftover ByHeart powdered formula, label it 'DO NOT USE' and keep it stored in a safe place for at least a month. If your child develops symptoms your state health department might want to collect your formula container for testing. If your child does not develop symptoms after 30 days, throw your containers out.

OSDH said you should also clean and sanitize any items and surfaces that may have come into contact with the recalled formula using hot, soapy water or a dishwasher.

Seek immediate medical care if your infant has consumed ByHeart Whole Nutrition infant formula and develops any of these symptoms: poor feeding, loss of head control, difficulty swallowing or decreased facial expressions.

OSDH said if this formula was used, it does not necessarily mean that symptoms will develop. However, due to the potential risk, parents and caregivers are urged to remain vigilant and monitor for any changes.

Botulism is a rare but serious illness caused by a toxin, primarily by the bacterium Clostridium botulinum, that attacks the body’s nerves and causes difficulty breathing, muscle paralysis and even death.

If parents or caregivers have questions or concerns, they should contact their child’s health care provider.

It is important to note that the recalled formula is not a WIC-eligible product.

More information on the outbreak can be found using the following links: