I think it depends on which diet you’re following and if you can tolerate grains or not.
No grains is probably best (but come on now, how perfect are we really at following this strict of diet?!), but personally I’ve had to have some here and there to stay sane. Another diet I’ve been following allows one serving of ‘limit’ grains per day (low glycemic), which includes amaranth, wild rice, quinoa, and teff, and one additional serving of high glycemic grains including rice and millet. You can only have the high glycemic grains, however, if you aren’t having any other limit foods that day. It can be a confusing system but I love their food list for meal planning, grocery shopping, etc. Whenever I’m unsure if a food is candida-safe, I just check that list.
It can be found here: http://www.wholeapproach.com/downloads/WholeApproach_Food_List.pdf