Inositol, as well as inositol hexaphosphate, are included to support both forms of inositol. Limit your B complex supplement to no more than the RDA. Thorne adds B2 to the formula, but the one thing I don’t like about the Thorne product is the high dose of B6 which comes in at 28.4 mg. This is a very large dose that I would not take for extended periods of time. This article examines the benefits of B-complex vitamins, as well as dosage and side effects. The B12 dose (methylcobalamin) is only 100 mcg, which I love, and the folate dose is 334 mcg, again well below the dose used in the JAMA study. In this article, we take a closer look at each of these vitamins, the benefits of B-complex supplements, who should use them, and side effects. The source of folate is a combination of folates that also includes low dose folinic. The B complex vitamins are water soluble, and you need to consumed them regularly to meet your needs. Online shopping from a great selection at Health & Household Store. The B-complex vitamins include B1, B2, B3, B5, B6, B7, B9 and B12. Low doses of both hydroxyl as well as adenosyl B12 are included to support B12 (rather than the less expensive but non-ideal cyano B12 found in most other B complex supplements). According to independent testing conducted by, Nature Made Super-B Complex Tablets score high on purity, but quite low on label accuracy. Vitamin B complex refers to the eight B vitamins. Some people simply do not tolerate the B complex vitamins. My husband becomes ill after taking but I take them every day with no problem. Niacin (B-3): You need 16 mg (men) or 14 mg (women): Many B-complexes exceed the upper tolerable intake limit which is 35 mg. Other B-vitamins: It is rare to be deficient in the other B vitamins if you are relatively well-nourished, but it's fine to get the daily requirements from a B-complex and no upper limits have been established for these. Re: Low-Dose B Vitamin Complex?