Gold Member Badge


  • You're all caught up!

How to Take Vitamins While Fasting

author image Jill Corleone, RDN, LD
Jill Corleone is a registered dietitian and health coach who has been writing and lecturing on diet and health for more than 15 years. Her work has been featured on the Huffington Post, Diabetes Self-Management and in the book "Noninvasive Mechanical Ventilation," edited by John R. Bach, M.D. Corleone holds a Bachelor of Science in nutrition.
How to Take Vitamins While Fasting
You may get an upset stomach if you take your multivitamin while fasting. Photo Credit: Comstock/Stockbyte/Getty Images

Whether you're fasting for religious or health reasons, you may worry about meeting your vitamin needs. Adding a supplement may help ease your mind, but you may find it harder to tolerate on an empty stomach. Taking your vitamin at certain times may help improve tolerance. Consult your doctor before fasting or adding a vitamin to your daily routine.

Video of the Day

Multivitamin and Empty Stomach

The most common side effects people experience when they take their vitamin are nausea, mild diarrhea and stomach discomfort. To help ease discomfort and limit side effects, most vitamin makers recommend you take your supplement with food. Arizona State University also reports that you may get better results when you take it with food.

Take at a Different Time

While it's important to take your vitamin as recommended by the manufacturer, you may want to talk to your doctor about taking your vitamin at a different time if you're fasting and experiencing abdominal discomfort after you take it. Taking your vitamin before bed, for example, may make it easier for you to tolerate the supplement if you're sleeping through the discomfort. However, it may also affect your sleep if the discomfort is so bad that it wakes you.

Watch When You Eat

All fasts are different. If you're fasting for religious reasons, there may be times when you're allowed to eat solid food. For example, during Ramadan you fast for 12 hours, then you feast. Taking your vitamin during the feast part of your fast may work better for you. If you're following a juice fast, you may find it easier to tolerate if you take it with one of your juices. Or, if the discomfort is unbearable, you may want to skip your multivitamin altogether while fasting.

Concerns With Fasting

According to a 2008 article published in Today's Dietitian, long-term fasting can lead to electrolyte abnormalities and heart failure. Fasting may also cause diarrhea. To prevent any discomfort when coming off your fast, reintroduce solid food slowly.

LiveStrong Calorie Tracker
Lose Weight. Feel Great! Change your life with MyPlate by LIVESTRONG.COM
  • Gain 2 pounds per week
  • Gain 1.5 pounds per week
  • Gain 1 pound per week
  • Gain 0.5 pound per week
  • Maintain my current weight
  • Lose 0.5 pound per week
  • Lose 1 pound per week
  • Lose 1.5 pounds per week
  • Lose 2 pounds per week
  • Female
  • Male
ft. in.



Demand Media