for something so important to the body, why does our bodily unable to produce its own vitamins?

Question

for something so important to the body, why does our bodily unable to produce its own vitamins?

In: 0

Answer 1

Turn it around; if our bodies could produce every vitamin we needed with no issues, we wouldn’t think of them as important.

Also, as one case study, I think humans used to be able to make Vitamin C in our bodies, but the gene for that got corrupted. At the time, we were getting enough of it from our food anyway that there was no evolutionary pressure to keep the ability, so instead of everyone dying out who couldn’t synthesize Vitamin C, it just stuck around.