Question

major food sources of vitamin b - 12 include

enriched grain products.

meat and dairy products.

fruit and vegetables.

nuts and seeds.

Explanation:

Vitamin B - 12 is mainly found in animal - based foods. Enriched grain products are more associated with B - vitamins like folic acid. Fruits and vegetables are not significant sources of B - 12 (except for some fortified plant - based milks in modern times, but generally not natural sources). Nuts and seeds are not major sources of B - 12. Meat (such as beef, chicken) and dairy products (milk, cheese) are natural sources of vitamin B - 12.

Answer:

meat and dairy products.