Like most supplements, vitamin B complex can cause side effects, depending on the dose and type of vitamin B. Find a list of ...

However, a group of eight B vitamins is known as Vitamin B complex. It consists of B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic ... you might have side effects.

B vitamins consist of: B1, B2, B3, B5, B6 ... a water-soluble vitamin, which means that excess amounts would be excreted in the urine. But it can have some side effects, like GI issues, so ...