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      Nutritional imbalances in a Mexican vegan group: urgent need for country-specific dietary guidelines Translated title: Desequilibrios nutricionales en un grupo mexicano de veganos: necesidad de guías alimentarias para cada país

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          Abstract

          Abstract Introduction: vegan diets exclude the consumption of animal-derived products, and health advantages have been reported when followed. However, heterogeneous eating habits, food availability, and sociocultural characteristics among regions could lead to different physiological results. Case reports: twelve patients following a strict vegan diet for an uninterrupted period of ≥ 3 years were subjected to clinical assessment. Patients significantly exceeded the suggested intake for sugar, presented six mineral deficiencies, and exhibited three vitamins below the recommended consumption. We further identified hyperglycemia, hypertriglyceridemia, subnormal serum vitamin B12 concentrations, as well as macrocytosis and microcytic anemia in several participants. Discussion: this Mexican vegan diet is strongly influenced by endemic and cultural adaptations that could limit the benefits reported in other populations. Professional guidance is required to avoid specific deficiencies with potential repercussions. We urge country-specific vegan guidelines considering local eating habits, food availability, and sociocultural perspectives around food.

          Translated abstract

          Resumen Introducción: la dieta vegana excluye el consumo de productos de origen animal y se ha vinculado con una disminución del riesgo de morbimortalidad. Sin embargo, los distintos hábitos alimentarios entre países podrían condicionar los beneficios reportados para las dietas basadas en vegetales. Casos clínicos: doce pacientes siguiendo una estricta dieta vegana por ≥ 3 años se sometieron a una evaluación clínica. Exhibieron una ingestión de azúcar que supera el consumo sugerido, presentaron tres deficiencias vitamínicas y seis de minerales. Se identificó la presencia de hiperglucemia, hipertrigliceridemia, concentraciones séricas subnormales de vitamina B12, macrocitosis y anemia microcítica en varios participantes. Discusión: la dieta vegana de este grupo resultó fuertemente influenciada por adaptaciones culturales que podrían limitar los beneficios reportados en otras poblaciones. Se requiere orientación profesional para evitar desequilibrios nutricionales. Enfatizamos la necesidad del desarrollo de guías alimentarias y de práctica clínica que consideren los hábitos alimentarios locales, la disponibilidad de alimentos en la región y las perspectivas socioculturales en torno a la dieta vegana.

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          Most cited references15

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          Sample size of 12 per group rule of thumb for a pilot study

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            Position of the Academy of Nutrition and Dietetics: Vegetarian Diets.

            It is the position of the Academy of Nutrition and Dietetics that appropriately planned vegetarian, including vegan, diets are healthful, nutritionally adequate, and may provide health benefits for the prevention and treatment of certain diseases. These diets are appropriate for all stages of the life cycle, including pregnancy, lactation, infancy, childhood, adolescence, older adulthood, and for athletes. Plant-based diets are more environmentally sustainable than diets rich in animal products because they use fewer natural resources and are associated with much less environmental damage. Vegetarians and vegans are at reduced risk of certain health conditions, including ischemic heart disease, type 2 diabetes, hypertension, certain types of cancer, and obesity. Low intake of saturated fat and high intakes of vegetables, fruits, whole grains, legumes, soy products, nuts, and seeds (all rich in fiber and phytochemicals) are characteristics of vegetarian and vegan diets that produce lower total and low-density lipoprotein cholesterol levels and better serum glucose control. These factors contribute to reduction of chronic disease. Vegans need reliable sources of vitamin B-12, such as fortified foods or supplements.
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              Vegetarian, vegan diets and multiple health outcomes: a systematic review with meta-analysis of observational studies.

              Beneficial effects of vegetarian and vegan diets on health outcomes have been supposed in previous studies.
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                Author and article information

                Journal
                nh
                Nutrición Hospitalaria
                Nutr. Hosp.
                Grupo Arán (Madrid, Madrid, Spain )
                0212-1611
                1699-5198
                April 2022
                : 39
                : 2
                : 473-478
                Affiliations
                [2] Rochester NY orgnameRochester General Hospital orgdiv1Internal Medicine PGY 1 USA
                [6] Mérida Yucatán orgnameUniversidad Marista de Mérida orgdiv1Facultad de Ciencias de la Salud orgdiv2Department of Human Nutrition and Metabolism Research Mexico
                [5] Mérida Yucatán orgnameUniversidad Autónoma de Yucatán orgdiv1Facultad de Química orgdiv2Laboratory of Chromatography Mexico
                [4] Mérida Yucatán orgnameUniversidad Autónoma de Yucatán orgdiv1Facultad de Ingeniería Química Mexico
                [3] Mérida Yucatán orgnameUniversidad Marista de Mérida orgdiv1Genomic and Metabolic Unit Mexico
                [1] Boston Massachusetts orgnameHarvard University orgdiv1Harvard T.H. Chan School of Public Health orgdiv2Department of Nutrition and Epidemiology United States
                Article
                S0212-16112022000200025 S0212-1611(22)03900200025
                10.20960/nh.03819
                1ec3671e-0b02-43ea-ae09-0852e471c1b1

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 05 August 2021
                : 30 October 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 15, Pages: 6
                Product

                SciELO Spain

                Categories
                Clinica Note

                Deficiencia de vitamina B12,Veganismo,Dieta vegana,Estado nutricio,Disparidades en el estado de salud,Vitamin B12 deficiency,Veganism,Vegan diet,Nutrition status,Health status disparities

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