Step 1: First tiny taste
Offer a small taste of well-cooked mashed or finely chopped langoustine. Watch for concerning symptoms such as hives, swelling, vomiting, or breathing trouble, and seek urgent care if those occur.
Langoustine is a crustacean shellfish and a priority allergen. Shellfish can be introduced with other complementary foods around 6 months. Offer well-cooked langoustine as a single new food. If your baby has severe eczema or a prior immediate food allergy, talk with a clinician before introducing highly allergenic foods.
Remove the shell, tail, and vein. Cook langoustine thoroughly until the meat is firm and opaque, then mash, puree, or finely chop into small pieces. Do not offer whole langoustines to young infants — round whole pieces can be a choking hazard. Always supervise eating.
Offer a small taste of well-cooked mashed or finely chopped langoustine. Watch for concerning symptoms such as hives, swelling, vomiting, or breathing trouble, and seek urgent care if those occur.
If the first taste was tolerated, gradually offer a larger amount of the same preparation at a later feed.
If tolerated, keep this food in the diet routinely as part of complementary feeding.
Complementary foods are typically introduced around 6 months of age, when the baby shows developmental readiness (for example, sitting with support, good head control, and swallowing food rather than pushing it out). Introducing solids before 4 months is not recommended.
Once your baby is ready for solid foods (typically around 6 months), shellfish can be introduced with other complementary foods. There is no evidence that delaying common allergens such as shellfish prevents allergy.
Remove the shell, tail, and vein. Cook until firm and opaque, then mash, puree, or finely chop into small pieces. Do not offer whole langoustines to young infants. Always supervise eating.
If your baby has severe, persistent eczema or had an immediate allergic reaction to a food — especially a highly allergenic food — talk with your child’s pediatrician about how and when to introduce highly allergenic complementary foods such as langoustine and other shellfish.