Richest source of vitamin B12?

Richest source of vitamin B12 ?
a) Meat
b) Green leafy vegetables
c) Corn oil
d) Sunflower oil
Correct Answer - A
Ans. is ‘a’ i.e., Meat
Vitamin B12 is naturally found in animal products, including fish,
meat, poultry, eggs, milk, and milk products.
Vitamin B12 is generally not present in plant foods, but fortified
breakfast cereals are a readily available source of vitamin B12 with
high bioavailability for vegetarians.
Rich source of vitamin B12→
Beef, liver, and chicken.
Fish and shellfish such as trout, salmon, tuna fish, and clams.
Fortified breakfast cereal.
Low-fat milk, yogurt, and cheese.