Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Achieving optimal essential fatty acid status in vegetarians: current knowledge and practical implications.

Brenda C Davis1, Penny M Kris-Etherton

  • 1Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA. pmk3@psu.edu

The American Journal of Clinical Nutrition
|August 26, 2003
PubMed
Summary

Vegetarian diets may lack sufficient omega-3 fatty acids, specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Vegetarians should consider dietary adjustments to improve their omega-3 status for health benefits.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effect of incorporating 1 avocado per day on lipoprotein particle concentrations compared to habitual intake in adults with abdominal obesity: An ancillary study of the Habitual Diet and Avocado Trial, a randomized controlled trial.

Journal of clinical lipidology·2026
Same author

The Habitual Diet and Avocado Trial (HAT): A Collaborative Multicenter Model for Large-Scale, Privately Funded Nutrition Research Consortia.

Current developments in nutrition·2026
Same author

Associations of almond, dark chocolate, and cocoa consumption with stool microbial diversity and composition among adults with overweight or obesity: An analysis of secondary outcomes from a 4-period crossover clinical trial.

Clinical nutrition ESPEN·2026
Same author

Leveraging Translational Science to Disseminate Evidence on Using Herbs and Spices to Improve Diet Quality.

Nutrition reviews·2026
Same author

Cardiometabolic and Microbiome Effects of Spices and Herbs.

Nutrition reviews·2026
Same author

Phytochemicals From Herbs and Spices: Their Absorption, Metabolism, and Relationship to Clinical Outcomes.

Nutrition reviews·2026

Area of Science:

  • Nutritional Science
  • Dietary Research
  • Human Physiology

Background:

  • Vegetarian diets are often lower in fat and cholesterol.
  • They may provide lower levels of specific omega-3 fatty acids like alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA).
  • Tissue levels of long-chain omega-3 fatty acids are often reduced in vegetarians, especially vegans.

Purpose of the Study:

  • To evaluate the omega-3 fatty acid status in vegetarian diets.
  • To understand the implications of vegetarian diets on essential fatty acid intake and conversion.
  • To highlight the importance of optimizing omega-3 fatty acid intake for health.

Main Methods:

  • Comparative analysis of nutrient content in vegetarian versus nonvegetarian diets.

Related Experiment Videos

  • Review of clinical studies on tissue levels of long-chain n-3 fatty acids in vegetarians.
  • Assessment of the efficiency of alpha-linolenic acid (ALA) conversion to EPA and DHA.

    • Main Results:

    • Vegetarian diets are relatively low in ALA compared to linoleic acid (LA) and provide minimal EPA and DHA.
    • Conversion of ALA to EPA and DHA in the body is inefficient (< 5-10% for EPA, 2-5% for DHA).
    • Vegetarians, particularly vegans, exhibit depressed tissue levels of long-chain n-3 fatty acids.

    Conclusions:

    • Vegetarians may require higher total omega-3 intake due to inefficient ALA conversion.
    • Dietary modifications are recommended for vegetarians to enhance their omega-3 fatty acid status.
    • Optimizing omega-3 intake is crucial for vegetarians to leverage their physiological and cardioprotective benefits.