Vincent van Gogh, the Dutch post-Impressionist painter , did have health problems. He smoked, drank alcohol – including absinthe - and coffee to excess, and didn’t eat well. He had years of mental illness, and died in 1890 at the age of 37, probably suicide
And some venereal issues too?

My favourite artist. If it wasnt for his "diet", maybe we wouldnt be talking about him today.