The answer is yes. While vitamin B complex plays a role in energy, brain health, and other functions, taking too much can ...

Your doctor will give you the right dosage of vitamin B12 supplement, especially if you will inject it. Taking too much can cause side effects like nausea, headache, dizziness, and, in some cases ...

Vitamin B6 can also influence serotonin and dopamine levels, which can impact your sleep if taken too late, Keatley says.

“Vitamin B” refers to eight different vitamins, which all play a role in converting food into energy in the body. Each vitamin has a unique role in a person’s health. Vitamin B-complex ...

Side effects from B12 s hots How much vitamin B12 per day Important: Pregnant and breastfeeding women need more vitamin B12 to support both themselves and their growing fetus or nursing newborn.