All chicken has vitamin B-12.
Many of our entries come from the USDA food database: ndb.nal.usda.gov/
This database contains all the vitamins and minerals for foods--it is very accurate and complete.
However, members have also entered food items her at Sparkpeople. They use the info on the package label. Vitamin B-12 is not a nutrient that must be listed; therefore the member did not list any.
to keep the nutrition info for your chicken as accurate as possible, use the entries that have not been entered by members....a chicken breast is a chicken breast.
SP Dietitian Becky