Any multiple vitamin with a USP stamp of approval should be okay.
I take Forvia, it was developed for people with UC or Crohn's. While I no longer have UC I do believe that my body is just naturally depleted in certain vitamins. You can read more about the vitamin at www.forvia.com Your GI may have free samples too.
dx proctitis in 1987
dx UC in 1991, was stable until 1998
1998 started prednisone, asacol, pentasa, nortriptylene, ativan, 6MP, rowasa enemas and suppositories, hydrocortisone enemas, tried the SCD diet, being a vegetarian, omega 3s, flax, pranic healing, yoga, acupuncture, probiotics
2000 lost all my B-12 stores and became anemic
2001 opted for j-pouch surgery- now living life med-free