I'm a 27 year old male, I have had HIV for about 5-6 years but just got
clean from crystal meth after seeking treatment this summer. I am serious
about taking care of myself now, but the whole thing is very
overwhelming and confusing. As of July, my CD count is 294, and I am
not currently on meds. I did another blood test recently and they said
depending on the results they may start me on meds next month. In the meantime, I feel very tired and rundown all the time, and I cannot put any weight on at all.
I
am wondering about vitamin supplements I can start taking to help
battle the HIV in my body. What are some essential ones I should start
taking? I currently take 1-2 Centrum multi-vitamins daily, and also 500 mcg
of B-12. I heard that HIV patients should have at least
2,000 mcg of B-12 daily. Is this true, should I up my dose? Thanks for
your help!

Congratulations on getting clean and getting yourself to focus on taking care of your health. The current guidelines for starting antiretroviral therapy indicate that a T cell count of 350 or less is when a patient should start (as long as they are ready). Some clinicians would start earlier and we could argue that given your weight troubles and feeling tired you should get started regardless of what your next counts show.
You might also ask your provider to check your testosterone level (I have made the assumption that you are a male) which many times is low in patients who are HIV positive and could account for some of the fatigue.
As far as vitamins go, what I tell my patients is that there is a lot of alternative medicine out there and not all of it is accurate or valid. I am very supportive of people finding good diet and vitamin regimens with the aid of a knowledgeable naturopath - provided that it doesn't interfere with the medical management recommended by the doctor. You also have to be quite careful not to go overboard on the prices. Sometimes I'll have a patient who is spending more than $100 a month on vitamin supplements and I just am not sure that is that helpful.
I think, for the most part, any excess vitamins that are ingested are excreted in the urine but 2000 mcg a day of B-12 sounds a bit much. Sorry I can't be more helpful with the vitamin specifics but there are lots of dietician/counselors out there who know much more than I do.
Good luck. --
Susan Ball, MD