Food Interactions with Prescription Drugs  - RD09

Food Interactions with Prescription Drugs

by Julie Stefanski, MEd, RDN, CSSD, LDN, CDE
(4.3 / 237 ratings )

This course is credentialed for:
Dietetics/Nutrition (2.00 CPEU)

Price: $39.00
CE-PRO Price: $19.50


Prescription drugs interact with certain foods, supplements, and herbs with detrimental consequences. Instead of a positive outcome, food-drug interactions can negatively affect the intended action of a medication regimen by decreasing its effectiveness and leading to increased morbidity, extended treatment duration, or hospitalization. Food-drug interactions can also lessen quality of life if the medication is not controlling symptoms when the effectiveness of the medication is compromised by food. In certain populations, including older adults and those with compromised organ systems, the effects of food-drug interactions are more significant. The number of people taking prescription drugs increases every year, and healthcare providers need to be well versed in the potential interactions of prescription drugs with food, food substances, and dietary supplements to educate patients appropriately and help lessen potentially adverse effects.


The goal of this continuing education program is to educate healthcare professionals about the adverse outcomes and change in effectiveness of prescription drugs caused by the intake of certain foods, food substances, and dietary supplements. After studying the information presented here, you will be able to:
  • Identify at least five factors affecting the therapeutic outcome of drug therapy
  • Explain the dietary monitoring and modifications needed for the medications discussed
  • Identify potential grapefruit-drug interactions and the potential effects on the body
  • Identify five common herbal preparations or supplements that interfere with the pharmacokinetics of certain drugs

Accreditation Information
This course is intended for multiple professions, including dietitians, health educators, and physicians.
Dietitians: Take this version of the course to ensure you receive appropriate credit.
For the version accredited or approved for another profession, go to your specific profession at or If you have a CE Direct login ID and password (generally provided by your employer), please log in as you normally would at and search for this topic title.
OnCourse Learning is a Continuing Professional Education (CPE) Accredited Provider (#GD001) with the Commission on Dietetic Registration (CDR). This course is a Level 2 course with suggested CDR learning codes of 2000, 2010, 2100, 3000, 3005, 3040, 3070, 4000, 4090, 5000, 5100, 5160 and performance indicators of 8.3.1, 8.3.6, 8.3.7, 10.4.1, 10.4.2, 10.4.3, 10.4.4.
OnCourse Learning is also accredited by the Florida Council of Dietetics and Nutrition (provider # FBN 50-1489).

Course Originally Released on: 6/10/2011
Date of Most Recent Review: 2/17/2017
Course Termination/Update Date: 2/17/2020

Unless stated above, the planners and authors of this course have declared no relevant conflicts of interest that relate to this educational activity. OnCourse Learning guarantees this educational activity is free from bias.

Please see CE Course Instructions to learn how to earn CE credit for this module.


For Florida professionals:

If this course is approved by the Florida Council of Dietetics and Nutrition, this course completion will be electronically reported to CE Broker as required per Florida Statute 456.025(7). Click here to view your CE Broker transcript and check the status of your CE requirements with a FREE 7-day CE Broker trial subscription. It may take up to 24 hours for the course to appear on your CE Broker transcript.

It is now required that all CE is completed and reported to CE Broker before you renew your license. When you complete continuing education with us, OnCourse Learning will report your hours for you.

Read more about the new license renewal process at and claim your free Basic Account in CE Broker to see what has already been reported for you.

Please check the licenses/certifications section under my account (after logging in) to make sure you have entered a valid FL license number. This information is required for correct reporting of your course completions to CE Broker.

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Kali W - Raleigh, NC  ·  Jan 22, 2018
Enjoyed the breakdown of food-drug interactions
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Larisa W - Fresno, CA  ·  Jan 13, 2018
Very comprehensive. Easy to apply.
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Felicia G - Mt. Pleasanat, SC  ·  Dec 04, 2017
Good overview, not too long or short
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Jennifer D - Blaine, WA  ·  Nov 22, 2017
Very educational, will review often
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Omega L - Mlang North Cotabato, PI  ·  Nov 06, 2017
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Price: $39.00
CE-PRO Price: $19.50