Fish
It depends how much
Tinned tuna has less mercury than fresh tuna, but there is still a ceiling: no more than 4 small tins a week — or 2 fresh tuna steaks, the two count together. It does not count as oily fish.
General information, not medical advice. It follows the public guidance for pregnancy and breastfeeding, and it cannot know your own history: for anything about your health or your baby's, the person to ask is your midwife or doctor.
the label, before the doubt