BBC Morning Live's resident GP, Dr Punam Krishan, has issued a warning that symptoms such as vision problems, constant fatigue and headaches could be due to a lack of a crucial vitamin.
Speaking on the show yesterday (Friday, November 8), the health expert highlighted that a deficiency in vitamin B12 is quite common and often overlooked.
In conversation with hosts Rav Wilding and Sara Davies, Dr Krishan explained that this deficiency "can affect anyone at any stage and very much depends on the cause but it's more common in older adults".
She further clarified that "being low in vitamin B12 can cause B12 deficiency anaemia. A lot of people tend to think of iron when they see anaemia but there are different types of that.