Serving size of 3oz (85g) chicken liver has 14.100 mcg vitamin B12, which is 503% of the daily vitamin B12 RDA for lactating women. 1 liver (20g) has 3.300mcg vitamin B12, which is 117% of the daily vitamin RDA.

Serving of 3oz (85g) of chicken liver  is also a good source of other priority 1 nutrient for lactating women, such as “true” vitamin A (retinol) and vitamin B2.