Certain neurological conditions, particularly neuropathies, can be triggered or worsened by the excessive consumption of specific B group vitamins, most notably vitamin B6.
The retrieved literature consistently supports the claim that certain B group vitamins (specifically vitamin B6) can cause neurotoxicity and lead to neuropathies when consumed in excess. Papers [3], [4], and [5] all highlight the link between excessive B6 intake and neurological symptoms. There are no refuting papers provided.