vitamins

hi i dont take any vitamins for crohns at all i  also have an underactive so its not surprising im drained all the time would i benefit from taking vitamins and if so what kind?

B12 is practically standard for anyone ill with a bad gut. As electrolyte balance is also adversely affected by diarrhoea, you might need calcium, magnesium and the likes; obviously a physician's advice is needed there as just guessing could make things worse. On top of that, some Crohnies benefit from extra iron, although their iron levels do not appear to be low.
If you have an underactive thyroid, then I don't know how that would affect things in terms of absorption of vitamins, but you are very likely to have severe problems with fatigue same as B12 deficient people would.
I also don't get vitamins except from food, and on going onto B12 supplements recently noticed a big improvement in previously very severe memory and concentration problems, with a lesser improvement in energy levels.

Two vitamins that are commonly deficient even in the healthy population are vitamin D and Folic Acid. Vitamin D deficiency has recently been implicated in the development of several auto-immune diseases, including Crohn's and IBD. Also, chronic diarrhea will result in a vitamin K deficiency which can cause kidney stones. Most people get adequate amounts of vitamin K in their diet and anyone on blood thinners should avoid increasing their vitamin K intake. This means that there is usually no vitamin K in supplements to avoid messing up the users of coumadin (potentially life-threatening for them). For you, your doctor should be asked about vitamin K supplementation to aid clotting and avoid dangerous bleeding.