Application of a Modified Healthy Eating Index (HEI-Flex) to Compare the Diet Quality of Flexitarians, Vegans and Omnivores in Germany

Interest in plant-based nutrition has steadily increased in the western world in the recent years. The number of people following a meat-reduced, flexitarian diet is growing continuously. However, little is known about the diet quality of flexitarians compared to vegans or omnivores. Therefore, in t...

Full description

Bibliographic Details
Main Authors: Anja Bruns, Mattea Mueller, Inga Schneider, Andreas Hahn
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Nutrients
Subjects:
Online Access:https://www.mdpi.com/2072-6643/14/15/3038
_version_ 1797412749988331520
author Anja Bruns
Mattea Mueller
Inga Schneider
Andreas Hahn
author_facet Anja Bruns
Mattea Mueller
Inga Schneider
Andreas Hahn
author_sort Anja Bruns
collection DOAJ
description Interest in plant-based nutrition has steadily increased in the western world in the recent years. The number of people following a meat-reduced, flexitarian diet is growing continuously. However, little is known about the diet quality of flexitarians compared to vegans or omnivores. Therefore, in this cross-sectional study, the food intake of 94 participants aged between 25–45 years was recorded via a validated food frequency questionnaire and 28 self-designed questions about the consumption of plant-based alternatives. An adapted Healthy Eating Index, HEI-flex, was developed to evaluate the diet quality of flexitarians, vegans and omnivores. Higher score points (SP) of the HEI-flex are associated with higher compliance with the official diet recommendations (V<sub>max</sub> = 100 SP). Finally, flexitarians scored significantly more highly when compared to omnivores (54 ± 8 vs. 47 ± 9 SP; <i>p</i> = 0.008) but lower than vegans (54 ± 8 vs. 61 ± 10 SP; <i>p</i> = 0.010). The results showed that the HEI-flex is a useful tool for assessing and comparing the diet quality of flexitarians, vegans and omnivores. Despite the consumption of highly processed plant-based alternatives, reduction in meat and meat products seems to be accompanied by increased overall diet quality.
first_indexed 2024-03-09T05:07:47Z
format Article
id doaj.art-206d0685036540aca0d1f181c26e281b
institution Directory Open Access Journal
issn 2072-6643
language English
last_indexed 2024-03-09T05:07:47Z
publishDate 2022-07-01
publisher MDPI AG
record_format Article
series Nutrients
spelling doaj.art-206d0685036540aca0d1f181c26e281b2023-12-03T12:53:11ZengMDPI AGNutrients2072-66432022-07-011415303810.3390/nu14153038Application of a Modified Healthy Eating Index (HEI-Flex) to Compare the Diet Quality of Flexitarians, Vegans and Omnivores in GermanyAnja Bruns0Mattea Mueller1Inga Schneider2Andreas Hahn3Institute of Food Science and Nutrition, Leibniz University of Hannover, 30159 Hannover, GermanyInstitute of Food Science and Nutrition, Leibniz University of Hannover, 30159 Hannover, GermanyInstitute of Food Science and Nutrition, Leibniz University of Hannover, 30159 Hannover, GermanyInstitute of Food Science and Nutrition, Leibniz University of Hannover, 30159 Hannover, GermanyInterest in plant-based nutrition has steadily increased in the western world in the recent years. The number of people following a meat-reduced, flexitarian diet is growing continuously. However, little is known about the diet quality of flexitarians compared to vegans or omnivores. Therefore, in this cross-sectional study, the food intake of 94 participants aged between 25–45 years was recorded via a validated food frequency questionnaire and 28 self-designed questions about the consumption of plant-based alternatives. An adapted Healthy Eating Index, HEI-flex, was developed to evaluate the diet quality of flexitarians, vegans and omnivores. Higher score points (SP) of the HEI-flex are associated with higher compliance with the official diet recommendations (V<sub>max</sub> = 100 SP). Finally, flexitarians scored significantly more highly when compared to omnivores (54 ± 8 vs. 47 ± 9 SP; <i>p</i> = 0.008) but lower than vegans (54 ± 8 vs. 61 ± 10 SP; <i>p</i> = 0.010). The results showed that the HEI-flex is a useful tool for assessing and comparing the diet quality of flexitarians, vegans and omnivores. Despite the consumption of highly processed plant-based alternatives, reduction in meat and meat products seems to be accompanied by increased overall diet quality.https://www.mdpi.com/2072-6643/14/15/3038flexitariansHEI-flexHealthy Eating Indexdiet qualityvegansplant-based alternatives
spellingShingle Anja Bruns
Mattea Mueller
Inga Schneider
Andreas Hahn
Application of a Modified Healthy Eating Index (HEI-Flex) to Compare the Diet Quality of Flexitarians, Vegans and Omnivores in Germany
Nutrients
flexitarians
HEI-flex
Healthy Eating Index
diet quality
vegans
plant-based alternatives
title Application of a Modified Healthy Eating Index (HEI-Flex) to Compare the Diet Quality of Flexitarians, Vegans and Omnivores in Germany
title_full Application of a Modified Healthy Eating Index (HEI-Flex) to Compare the Diet Quality of Flexitarians, Vegans and Omnivores in Germany
title_fullStr Application of a Modified Healthy Eating Index (HEI-Flex) to Compare the Diet Quality of Flexitarians, Vegans and Omnivores in Germany
title_full_unstemmed Application of a Modified Healthy Eating Index (HEI-Flex) to Compare the Diet Quality of Flexitarians, Vegans and Omnivores in Germany
title_short Application of a Modified Healthy Eating Index (HEI-Flex) to Compare the Diet Quality of Flexitarians, Vegans and Omnivores in Germany
title_sort application of a modified healthy eating index hei flex to compare the diet quality of flexitarians vegans and omnivores in germany
topic flexitarians
HEI-flex
Healthy Eating Index
diet quality
vegans
plant-based alternatives
url https://www.mdpi.com/2072-6643/14/15/3038
work_keys_str_mv AT anjabruns applicationofamodifiedhealthyeatingindexheiflextocomparethedietqualityofflexitariansvegansandomnivoresingermany
AT matteamueller applicationofamodifiedhealthyeatingindexheiflextocomparethedietqualityofflexitariansvegansandomnivoresingermany
AT ingaschneider applicationofamodifiedhealthyeatingindexheiflextocomparethedietqualityofflexitariansvegansandomnivoresingermany
AT andreashahn applicationofamodifiedhealthyeatingindexheiflextocomparethedietqualityofflexitariansvegansandomnivoresingermany