My uric acid is 357,can I eat alfafah sprout and tomato frequently

Normal serum creatinine values are 178 to 440 mmol/L or thereabouts depending on the lab that you go. Its a bit high, but still normal.

By frequently if you mean 5-6 servings a day, everyday, that's not a very good idea. You can still eat it but in moderation. If you're planning to eat a lot of tomatoes, remove the seeds before eating them.

Also avoid any legumes, beans or (if you're the adventurous type of gourmet) animal internal organs.

And oh yeah... beer is high in uric acid.