MyLee by MyMilk Labs
serving size of 1/2 fillet (159g) Halibut Fish (cooked) has 2.020mcg Vitamin B12, which is 72% of vitamin RDA for lactating women.
Halibut fish is a good source of other priority 1 nutrients for lactating women, such as Vitamin B6, selenium and DHA fatty acid (omega 3).
Find a recipe with halibut fish here