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Vietnam warns against ByHeart and Botulism

By Bruce Clark on November 20, 2025
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The Ministry of Health has issued an urgent warning after reports of botulinum poisoning in infants were linked to the ByHeart Whole Nutrition infant formula, now available on several e-commerce platforms in Vietnam.

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Yesterday afternoon, the Ministry of Health issued a warning about the risk of botulinum poisoning in infants linked to the ByHeart Whole Nutrition infant formula product, which has been approved and is currently sold on several e-commerce platforms in Vietnam.

According to information from the World Health Organization (WHO) in Vietnam, as of November 19, the U.S. Centers for Disease Control and Prevention (CDC) recorded 31 infant botulism cases, both suspected and confirmed. They were fed ByHeart Whole Nutrition powdered infant formula before getting sick. 

Botulinum poisoning is a rare but extremely dangerous disease that can be fatal if not detected and treated promptly. Common symptoms in infants include choking, difficulty feeding, constipation, drooping eyelids, muscle weakness, weak crying, reduced movement of arms and legs, and inability to lift the head.

Affected infants can present with some or all of the following signs and symptoms such as constipation, poor feeding, ptosis (drooping eyelid), sluggish pupils, low muscle tone, difficulty sucking and swallowing, weak or altered cry, generalized weakness, respiratory difficulty, and possibly respiratory arrest. 

ByHeart Whole Nutrition Infant Formula is currently under voluntary recall.

The Ministry of Health advises parents and caregivers to stop using ByHeart formula immediately, monitor their child for symptoms of infant botulism, take the child to the nearest medical facility if any of the above symptoms appear. Finally, parents and caregivers should thoroughly clean all utensils and surfaces that have come into contact with the formula using hot soapy water or a dishwasher to prevent contamination.

Photo of Bruce Clark Bruce Clark

Bruce Clark is a partner in Marler Clark. In 1993, Bruce became involved in foodborne illness litigation as an attorney for Jack in the Box restaurants in its E. coli O157:H7 personal injury litigation. The Jack in the Box litigation spanned more than…

Bruce Clark is a partner in Marler Clark. In 1993, Bruce became involved in foodborne illness litigation as an attorney for Jack in the Box restaurants in its E. coli O157:H7 personal injury litigation. The Jack in the Box litigation spanned more than four years and involved more than 100 lawsuits in four states. Since that time, Bruce has been continuously involved in food and waterborne illness litigation involving bacterial, viral, and parasitic agents in settings ranging from large scale outbreaks to individual cases. He has extensive expertise in the medical, microbiological, and epidemiological aspects of foodborne illness cases gleaned from more than a decade of working with leading experts across the country. Bruce frequently speaks to public health groups as well as food industry groups about the realities of foodborne illness litigation and efforts that can help avoid the damage foodborne pathogens inflict.

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  • Posted in:
    Food, Drug & Agriculture
  • Blog:
    Food Poison Journal
  • Organization:
    Marler Clark, Inc., PS
  • Article: View Original Source

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