Identical twins were subjected to a different diet, one omnivore and the other vegan. Among these twenty-two pairs of participants, and after two months, those who followed the second diet improved their bad cholesterol and insulin levels, but also reduced their body weight. The study authors advocate introducing more plant-based foods into meals that help improve cardiovascular health.
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Weight loss, energy, intestinal transit: scientific studies continue to extol the merits of a vegan diet that would also improve cardiovascular health. This is suggested by American researchers, who evaluated the effects of vegan and omnivorous diets on monozygotic twins with similar upbringings and lifestyles.
Restrict meat would lead to better overall health. But the numerous studies carried out on the subject have always presented certain limitations, most often linked to genetics or lifestyle. This is why researchers from Stanford Medicinethe Stanford University School of Medicine, in the United States, decided to evaluate the effects of Vegan diet in monozygotic twins, who grew up in the same house and with similar habits. Twenty-two pairs of twins were included in this study, carried out between May and July 2022, to which one twin from each pair was assigned. Vegan diet Or omnivorous.
Scientists specify that the two proposed diets were considered healthy and rich in vegetablesvegetables, fruits and whole grains, without refined sugars and starches, but that the first was based exclusively on products of plant origin, while the second included chickenfish, eggs, cheese or even dairy products. Participants received delivered meals for the first four weeks – breakfasts, lunches, dinners – and then prepared their own meals for the next four weeks. Each individual also kept a diary to provide a list of foods consumed.
Twin study: omnivorous diet versus vegan diet? Video in English, enable subtitles. © Stanford Medicine
Better cardiovascular health
Published in Open JAMA Network, this work suggests that the vegan diet has the potential to improve heart health in just eight weeks. “ This implies that anyone choosing a vegan diet can improve their long-term health within two months, with the biggest changes seen in the first month. “, explains Professor Christopher Gardner, main author of the study, in an affirmation. This is actually one of the lessons from this research: most improvements were seen during the first four weeks after the diet change.
The researchers also specify that participants who became vegan had lower levels of low-density lipoprotein cholesterol (the bad cholesterol), insulin and lower body weight than participants omnivores. Markers that scientists associate with better cardiovascular health. “ Based on these results and with longevity in mind, most of us would benefit from adopting a more plant-based diet. », continues Professor Gardner.
Include more plant-based foods
The objective of this work is not to force populations to adopt a Vegan diet 100%, scientists being aware of the revolt This might constitute for some, but to ensure that you limit your meat consumption and turn to plant-based sources. “ What’s more important than becoming strictly vegan is including more plant-based foods in your diet. Fortunately, indulging in multicultural vegan foods like Indian masala, stir-fried Asian vegetables, and African lentil dishes can be a great first step. », concludes the main author of the study.
Previous search decided to compare the Mediterranean diets and vegan, both considered beneficial for health, but with more virtues for the second, according to researchers. Another study even analyzed the impact of the vegan diet on our pets, dogs and cats, revealing that four-legged vegans were in better health.