Researchers have found a possible link between lack of vitamin B12 in early life and insulin resistance later. (Link has both video and text; video does at times assume fat is a problem, but overall explores why type 2 diabetes is not brought on by eating too much.)
I’ve written before about being deficient in Vitamin B12, so you may understand that this is a bit closer to home for me that others. And the endocrinologist has reminded me many times that I’m insulin resistant.
So. Yeah. Interesting.