Hair miniaturization – can disease or lack of nutrients cause it?

Could you tell me if hair miniaturization on the scalp is possible without DHT?  I am aware that hair does miniaturize a bit as we get older.  Also, the reason I ask is because we always hear of hair loss linked to thyroid issues/other illnesses or vitamin deficiency but I’m curious if diseases or lack of nutrients can cause miniaturization.

There are many causes of miniaturization which is a state where the hair health is not good. It may reflect the end of the life of the hair when the miniaturization becomes very advanced as seen in genetic balding. It can happen with hair loss from diseases, starvation and aging.