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Can I Take a Multivitamin at Night?

author image Derek Buckner
Derek Buckner has been writing professionally since 2005, specializing in diet, nutrition and general health. He has been published in "Today's Dietitian," "Food Essentials" and "Eating Well Magazine," among others. Buckner is a registered dietitian and holds a Bachelor of Science in nutrition and food science from Drexel University.
Can I Take a Multivitamin at Night?
You can take your multivitamin at night. Photo Credit: Julia_Albul/iStock/Getty Images

A multivitamin can help you meet your body’s daily requirements for vitamins and minerals. A multivitamin, or supplement, should not be used to replace any foods or food groups. When taking a multivitamin or supplement, it’s important to take it at the same time every day.

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Time of Day

The time of day that you take your multivitamin is not important. You can take your multivitamin at any time of day. Some people take their multivitamin in the morning with breakfast, while others take it at night before bed. A report from Arizona State University notes that you should take it with food, while suggests you take it with a full glass of water. Whenever you choose to take your multivitamin, be consistent.


You may feel nauseous after taking a multivitamin, as the supplement contains iron, magnesium and other trace minerals. If you’re already getting plenty of these nutrients from your diet, taking a multivitamin may put your iron levels over the top and make you feel sick. Prenatal vitamins also contain iron and can sometimes make expectant women feel nauseous. In such cases, taking your multivitamin at night before bed is advised.


Multivitamins can help keep your bones strong, help ward off diseases and help prevent vitamin deficiencies resulting in conditions such as scurvy and beriberi. Arizona State University reports that they help improve your immune system, memory, energy levels and the way your body responds to stress. If you’re a woman of childbearing age, the folic acid in multivitamins can help prevent neural-tube birth defects, should you become pregnant.


While multivitamins do have benefits, it’s also important to know that if your body gets too much of a particular vitamin, it could make you sick. Also, if the excess amount doesn't make you sick and your body can’t use it, any excess of that nutrient will be eliminated through your urine. Certain nutrients, such as beta carotene, can increase the risk of lung disease in smokers, which could be important to you if you smoke.

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