How Much B Complex Should You Take a Day?

Many doctors recommend 100 mg of B-complex vitamins per day. Double-blind research suggests that supplementing with vitamin B-complex multivitamin may reduce feelings of anxiety, perceived stress, and tiredness.

Is 100mg of vitamin B complex too much?

If you take supplements, do not take too much as this might be harmful. Taking 100mg or less a day of thiamin supplements is unlikely to cause any harm.

Can you take too much B complex vitamins?

B complex contains vitamin B6, and an overdose of this vitamin (200 mg or more per day) can lead to a loss of feeling in the arms and legs. This is usually temporary and will go away once you stop taking the vitamin, but in some cases the effect can be permanent.