Depends: If you have good quality vitamins, most people will feel a step up in about 2-3 weeks of taking them. If you are taking something that makes you feel queasy, nauseated, etc, stop it. Try a better brand, different formulation or a break. Not every one can take alot of vitamins.
Answered 9/28/2016
5.7k views
3 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question