The other issue is, just because the lab tested for high amounts of a vitamin does not mean that you will get those vitamins into your body. Most vitamins need a combination to actually get absorbed by your body or to not have an adverse effect. (Vitamin C needs iron, B vitamins often benefit from K, …)
So, sometimes a food item with “low levels” of the vitamin will actually give your body more of it that something that just has vitams B crammed into it without anything to help your body digest it.
The other issue is, just because the lab tested for high amounts of a vitamin does not mean that you will get those vitamins into your body. Most vitamins need a combination to actually get absorbed by your body or to not have an adverse effect. (Vitamin C needs iron, B vitamins often benefit from K, …) So, sometimes a food item with “low levels” of the vitamin will actually give your body more of it that something that just has vitams B crammed into it without anything to help your body digest it.