FDA urges formula makers to tighten supplier oversight following botulism outbreaks.

The US Food and Drug Administration has called on infant-formula makers to sharply tighten oversight of their ingredient suppliers after a string of recalls and the first botulism outbreaks linked to baby formula in nearly 50 years, according to Sacramento Bee. The agency investigated two multi-state botulism outbreaks tied to two brands of powdered formula — ByHeart and Nara Organics — both of which were recalled.
A separate global contamination event between 2025 and 2026 made the crisis worse. Nearly 150 suspected and confirmed cases of cereulide intoxication — a type of food poisoning — were reported across 10 countries, according to News Observer. All cases were traced to contaminated arachidonic acid oil used as an ingredient in infant formula.
The FDA linked two separate multi-state botulism outbreaks to powdered infant formula made by ByHeart and Nara Organics, according to Sun Herald. Both products were recalled after the agency's investigation. These are the first confirmed cases of infant botulism tied to formula in about half a century. Botulism is a rare but serious illness caused by a toxin that can paralyze muscles.
The outbreaks raised urgent questions about how formula makers track and test the ingredients they buy from outside suppliers, according to Star-Telegram. The FDA said manufacturers need to know where every ingredient comes from, how it is made, and what safety risks it may carry.
Beyond the US botulism cases, a global contamination event spread illness across 10 countries. Nearly 150 suspected and confirmed cases of cereulide intoxication were reported, according to Fresno Bee. Cereulide is a toxin produced by a bacteria called Bacillus cereus. It causes vomiting and, in severe cases, can harm the liver.
Investigators traced all the cases to contaminated arachidonic acid oil — an ingredient added to infant formula to support brain development, according to Charlotte Observer. New Zealand's a2 Milk recalled three batches of its a2 Platinum formula sold in the US after its product was also linked to the tainted ingredient.
The FDA is pushing formula makers to do more than just test finished products. The agency wants companies to understand how every ingredient is produced and whether the risks are properly controlled, according to The State. That means tracking suppliers several steps back in the supply chain — not just the company they buy from directly.
The call for tighter oversight comes after years of supply-chain fragility in the infant-formula market. A 2022 shortage left store shelves empty across the US after a major recall. The FDA now sees supplier oversight as a key gap that the industry must fix, according to Tri-City Herald.
The recalled brands — ByHeart, Nara Organics, and three batches of a2 Platinum — have been pulled from sale. Parents who have any of these products at home should stop using them and contact the manufacturer for a refund or replacement, according to Mahoning Matters. The FDA has not issued a broader warning about other formula brands.
Health officials say the overall risk to infants from formula currently on shelves is low. But the outbreaks show that even rare contamination events can cause serious harm fast, according to News and Observer. The FDA is expected to issue updated guidance for the industry in the coming months.
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