Which foods are rich within Vitamin B-12?

It supposedly retards memory loss.(Pardon the weak pun.)Which foods are rich within Vitamin B-12?
gloomy green leafy vegetables
SPINACH!
green leafy vegetables and marmite!
Liver! but not everyone likes it. I love liver and onions!
lots of decent fruit foods!
look http://www.healthylifeday.com
Go to this link and they hv a index of the food that contains Vitamin B12.
Hope this helps.
http://ods.od.nih.gov/factsheets/vitamin...
Salmon, Trout, eggs, milk. cheese, pork , tuna, some cereal, And liver ( gross). Hope this helps a bit,
Foods that are rich in B12 cereal milk seaweed greens thats just a few I also hold a B12 injection every three months as my body does'nt absorb it drastically well. Good luck
Sorry this is a one stale paper I wouldn't provide it too much credence!
B12 is however found in fluently in meat, dairy products and eggs. Other sources include breakfast cereal, to which it has be added artificially.
liver
dairy produce
shellfish
eggs
cheese
fish