ByHeart botulism outbreak may be linked to powdered whole milk

Powdered whole milk used in the production of ByHeart infant formula has been identified as a potential source of contamination leading to a recent outbreak of botulism among dozens of infants, according to U.S. health officials. The U.S. Food and Drug Administration conducted testing that revealed the presence of bacteria known to cause botulism in samples connected to the formula.

The FDA discovered that the bacteria found in an unopened can of formula matched the strain found in a sick baby. Additionally, it was found that the contamination in the formula samples corresponded to the bacteria detected in samples of organic whole milk powder used in the production of ByHeart formula, collected and tested by the company. Further testing revealed contamination in a sample of whole milk powder supplied to ByHeart, which matched the bacteria present in a finished sample of the formula.

While these findings are not definitive, the investigation is ongoing to pinpoint the exact source of the contamination, as stated by the FDA. ByHeart officials acknowledged the significance of these findings in potentially identifying the root cause of the issue. The supplier of the powdered whole milk has not been disclosed by either the FDA or ByHeart.

At present, there is no evidence of a widespread problem in the infant formula supply chain, according to the FDA. ByHeart, based in New York, has been at the center of a botulism outbreak affecting 51 infants across 19 states since December 2023. The issue came to light when a surge in cases of infant botulism was detected among babies who had consumed ByHeart formula.

Following the identification of the problem, ByHeart initially recalled two lots of formula, which was later expanded to include all products. Federal health authorities indicated that contamination may have affected all products manufactured by the company since its launch in March 2022. Subsequent testing by the company revealed that a significant proportion of formula samples contained the bacteria responsible for infant botulism.

While illnesses caused by botulism in infant formula are rare, the scale of the ByHeart outbreak is unprecedented. Food safety experts emphasize the importance of mandatory testing of raw materials and finished products for contamination. Despite the potential involvement of a milk supplier in the contamination, ByHeart remains accountable for the harm caused by its product.

ByHeart, previously holding a small share of the U.S. infant formula market, marketed its product as a close alternative to human breast milk, made from organic, grass-fed whole milk. The formula, priced at around $42 per can, was chosen by parents for its perceived health benefits. Moving forward, the FDA and other regulatory bodies are urged to implement rigorous testing protocols to prevent similar incidents in the future.

The ByHeart infant formula recall and botulism outbreak have raised concerns among consumers and experts alike, highlighting the importance of stringent quality control measures in the production of infant nutrition products.