A new peer-reviewed study published in the journal Prostaglandins, Leukotrienes and Essential Fatty Acids (PLEFA) sheds light on how diet patterns influence long-chain omega-3 levels (EPA and DHA) across different groups.
The research measured both dietary intake and red blood cell levels of omega-3s and showed that individuals adhering to vegan diets had significantly lower omega-3 index values compared to those on lacto-ovo vegetarian, pescatarian and non-vegetarian eating patterns.
According to the study, pescatarians and non-vegetarians achieved notably higher omega-3 index values, consistent with consumption of fish or marine-derived omega-3s. These results underscore that diet alone may be insufficient for certain populations without supplementation or fortified foods.
The study also supports the notion that omega-3 status is strongly influenced by dietary sources and that baseline differences by diet groups should be accounted for in both nutritional research and personalized health strategies.
Given the growing global interest in plant-based diets, the research prompts a reevaluation of dietary recommendations, educational messaging and supplement strategies to ensure those avoiding animal-sourced foods can still maintain optimal omega-3 levels, researchers said.
“As more people move toward plant-based eating it’s critical to understand the nutritional gaps that can come with that shift. This study provides clear evidence that omega-3 status is one of those gaps—and it’s one we can easily fix through awareness, testing, and smart supplementation,” said Dr. Bill Harris, president of the Fatty Acid Research Institute (FARI) and co-author of the study.
For more information, visit www.omegaquant.com.
