Mackerel bones, especially when cooked properly, can be eaten safely. Unlike larger fish bones, mackerel bones tend to be softer and more delicate, particularly when canned or pressure-cooked.
However, consuming mackerel bones requires caution, as some bones can be sharp and pose choking hazards. Learning the best preparation methods can help make them safe to eat. https://www.fireongrills.com/can-you-eat-mackerel-bones/