I have gilbert's, eyes more yellow than usual in spite of improved diet & less alcohol. effecting social life. how to decrease bilirubin?

No proven treatment : No specific therapy is required for patients diagnosed with gilbert's syndrome. The most important thing is to recognize that this condition is inconsequential. If bili levels are higher than expected, can look for co-existing condition (eg hemolysis, other mutation).

Can you re-focus?: Your physician can give you Phenobarbital but i expect that you'll find this is worse than having mild jaundice. I'm sorry that being a bit yellow is affecting your social life. Life is not fair, and one option is to tell people up front that you have gilbert's (say it in english, not french) and that it is not catching. You're a man and can focus on other "looks" factors under your control.