How a harmless-looking spore can become dangerous
Botulism spores are tough, dormant forms of bacteria. They can survive in honey without producing toxin there, which is why honey can look and taste normal. In an infant’s still-developing digestive system, however, the spores may germinate, multiply, and release botulinum toxin.
That toxin interferes with the signals nerves send to muscles. Infant botulism can begin with constipation and progress to weak feeding, a weak cry, or unusual floppiness. These signs need prompt medical attention.
Why the first year matters
As a child’s gut matures, its microbial community and other defenses make it harder for the bacteria to take hold. For that reason, honey should not be given to babies younger than 12 months. The concern applies to honey in any form, not just raw honey: ordinary processing or mixing it into food does not make it a safe choice for an infant.
The risk is specific to babies’ developing guts; it does not mean honey is poisonous to everyone. A small spoonful can carry spores even when nothing about the honey suggests a problem, so waiting until after the first birthday is the simple way to avoid that risk.
