Nutritional, Cardiovascular Health and Lifestyle Status of 'Health Conscious' Adult Vegans and Non-Vegans from Slovenia: A Cross-Sectional Self-Reported Survey

Boštjan Jakše, Barbara Jakše, Uroš Godnov, Stanislav Pinter, Boštjan Jakše, Barbara Jakše, Uroš Godnov, Stanislav Pinter

Abstract

The study aim was to investigate differences in nutritional, cardiovascular and lifestyle status of 'health conscious' subjects. In a partial 'lock-down' during the COVID-19 pandemic period, we performed a web-based, cross-sectional study. We compared 80 self-selected subjects (51 vegans, 67% females, and 29 non-vegans, 55% females, p = 0.344). Nutritional status was assessed by bio-electrical impedance and standardized food frequency questionnaires (i.e., contribution of nutrients from foods and supplementation, combined and separate). Serum lipid concentrations and blood pressure (BP) were assessed from annual or initial examination reports, while sociodemographic, economic, and lifestyle statuses were obtained by standardized questionnaires. Finally, a multivariate linear regression model was used to estimate the relationship between total fiber and saturated fatty acid (SFA) intake and low-density lipoprotein cholesterol (LDL cholesterol) values. The vegans had a significantly lower body mass index (22.8 ± 2.4 vs. 26.6 ± 3.6 kg/m2, p < 0.001) and body fat % (19.3 ± 7.3 vs. 25.8 ± 8.2%, p < 0.001) than the non-vegans. There were significant differences between vegans and non-vegans in energy intake, and most macronutrient (10/12) and micronutrient (15/23) intakes in units/day. Both diets were well designed, with high fiber and low SFA and free sugar intake but remained insufficient in n-3 long chain polyunsaturated fatty acids (for vegans), vitamin D, calcium, sodium (for vegans) and iodine. Vegans also had a significantly lower lipid profile and BP than non-vegans, except for high-density lipoprotein cholesterol. However, both groups met targeted recommendations. Furthermore, fiber and SFA intake and age explained 47% of the variance in LDL cholesterol. In conclusion, 'health conscious' vegans and non-vegans with comparable lifestyle statuses had significant differences in dietary intake, body composition and cardiovascular health status.

Trial registration: ClinicalTrials.gov NCT04379622.

Keywords: COVID-19; blood lipids; blood pressure; body composition; cardiovascular health; diet; lifestyle; non-vegan; nutrition; vegan.

Conflict of interest statement

The authors declare no conflict of interest related to this manuscript.

Figures

Figure 1
Figure 1
Recruitment process for participation in the study.
Figure 2
Figure 2
Multivariate regression relationship between fiber, SFA intake and age and LDL cholesterol.

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