My aunt had her health examined and her glomerular filtration rate is at 70ml/min. She thinks it has to do with consuming too many vitamin B12 (her B12 level is above normal) and I also think that she consumed way too many other types of vitamins. I told her to stop consuming any type of vitamins for two months and see if her kidney condition improves. But she really want to continue to take the Lipo-Flavonoid (which contains Vitamin B1, B2, B6,B12, C, niacin, pantothenic acid, and calcium) because she said that it helps with her tinnitus. She also wants to take the Bilberry vitamin with lutein for her eyes. What is the best thing for her to do? Thanks in advance.