Really! Fascinating - I drink about 8 cups a day! Any evidence for this anywhere else?
The British Tinnitus soc say Tinnitus, food and drink - Tinnitus UK
" Caffeine
People with tinnitus are frequently told to avoid caffeine containing drinks such as coffee and tea. There is no scientific rationale for this advice. A properly conducted scientific study showed that caffeine was not associated with tinnitus causation. Moreover, the researchers found that withdrawing someone from their usual intake of caffeine did produce side effects, particularly headaches and nausea, and this could potentially worsen pre-existing tinnitus. The sensible advice regarding tea or coffee drinking therefore seems to be to stay on a fairly constant intake and not vary this too much from day to day."