Adelle Davis used to say "What carrot grown where?" when stressing that it depended on the soil nutrients whether a carrot, or any vegetable, was nutritious. This article was written to the Senate with the same point and it was 7 years before I was even born. I'm not sure, but I don't think it was published till 1941.

https://www.anaturalway.com/Senate_Document_264.html

Yup! That's why we're all having to take so many supplements of Vitamins
and minerals. Sad! Sad! Sad!

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May you always have..Love to Share, Health to Spare, and Friends that Care!