Hi. what type of vitamins should i take, to build energy? i am fatigued all the time. thank you?

Unlike common belief taking vitamins will not boost your energy- if you have a normal healthy diet, sleep well and lead a normal life. If the symptoms have been for long and persists pl get a good checkup from your doc. Wish you health

Fatigue is a common symptom that has to be worked up properly with the help of your doc. If indeed related to a vitamin deficiency you will definitely benefit from supplementing that vitamin, otherwise it is not likely that you will benefit from just taking vitamins.