Everyone has a different Gout trigger.
For me I have discovered it is actually oily fish and fish oils that cause my gout.
I also recently had an attack, after about 5 years of avoiding eating oily fish, which was caused by regulary consuming Pumpkin Seeds, which I found out are also high in omega 3.
That appears to be my gout trigger.
Be carefull with fish oils.......use with caution.