The intrinsic factor helps the body to absorb which vitamin?

Noyb, Wrong! Check it out on a reputable site.

I think this is saying that if we take vitamins we should make sure we have enough of the vitamin B12 in our system, too, because it helps our body absorb other vitamins better. I was unaware of that.

The term “intrinsic factor” is too vague. There are vast numbers of intrinsic factors in our world.