RESUMO

Resumen Introducción: a nivel global, se ha ido incrementando progresivamente la cantidad de personas que adhieren a distintas variantes de dietas vegetarianas. Ello supone, entre otros desafíos, contar con profesionales de la salud y de la nutrición que puedan responder a las necesidades y demandas particulares de estos grupos. Objetivo: indagar conocimientos y actitudes de licenciadas y licenciados en Nutrición de Argentina sobre alimentación ovo-lacto-vegetariana y vegana. Materiales y método: para este estudio observacional, exploratorio y transversal, se diseñó un cuestionario orientado a evaluar conocimientos y actitudes sobre alimentación veg(etari)ana. El muestreo fue no probabilístico, de tipo intencional, convocándose a profesionales de la nutrición residentes en Argentina. Para el análisis de datos se utilizó el programa estadístico SPSS 29.0.0.0. Resultados: la muestra constó de 318 profesionales. Los mayores niveles de información acerca de temas clave de la alimentación y nutrición veg(etari)ana, así como las actitudes orientadas al interés por el impacto de la dieta en el medioambiente y/o en el bienestar animal, se asociaron significativamente con la pertenencia al intervalo de menor edad, menor cantidad de años transcurridos desde el egreso de la carrera de grado y la adherencia propia a dietas ovo-lacto-vegetarianas y veganas. La gran mayoría de los y las profesionales manifestó aceptación y comprensión hacia las elecciones de los/as pacientes veg(etari)anos/as. Conclusiones: los conocimientos y actitudes observados estarían más relacionados con circunstancias generacionales y elecciones personales que con la formación académica. Resulta necesario incluir sistemáticamente en las carreras de grado contenidos de alimentación y nutrición veg(etari)ana con un abordaje integral, contemplando aspectos nutricionales, ambientales y socioculturales.

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Abstract Introduction: globally, the number of people who adhere to different variants of vegetarian diets has been progressively increasing. This involves, among other challenges, having health and nutrition professionals who can respond to the particular needs and demands of these groups. Objective: to search knowledge and attitudes of graduates in Nutrition of Argentina on ovo-lacto-vegetarian and vegan diets. Materials and method: for this observational, exploratory and cross-sectional study, a questionnaire was designed to assess knowledge and attitudes about veg(etari)an diets. The sampling was non-probabilistic, intentional, summoning nutrition professionals residing in Argentina. The statistical program SPSS 29.0.0.0 was used for data analysis. Results: the sample consisted of 318 professionals. Higher levels of information about key issues of veg(etari)an food and nutrition, as well as attitudes oriented to interest in the impact of diet on the environment and / or animal welfare, were significantly associated with belonging to the youngest age range, fewer years elapsed since graduation from the undergraduate career and adherence to ovo-lacto-vegetarian and vegan diets. The vast majority of professionals expressed acceptance and understanding towards the choices of vegan patients. Conclusions: the knowledge and attitudes observed would be more related to generational circumstances and personal choices than to academic training. It is necessary to systematically include in the undergraduate courses contents of veg(etari)an food and nutrition with a comprehensive approach, contemplating nutritional, environmental and sociocultural aspects.

Assuntos

Dieta Vegana , Nutricionistas

RESUMO

OBJECTIVE: The impact of a vegan diet on sprint interval exercise performance is unknown. Thus, the purpose of the present study was to compare performance during a sprint interval exercise between omnivores and vegans. METHODS: Nine healthy omnivores (4 men and 5 women) and nine healthy vegans (4 men and 5 women), with similar levels of daily physical activity, performed four bouts (5-min rest between bouts) of a 30-s all-out sprint exercise on a cycle ergometer. Peak power, mean power, fatigue index, and time to reach maximal power output in each bout were recorded. RESULTS: There was a higher peak power in bouts 1 and 2 compared with bouts 3 and 4 (p < 0.02), and a higher mean power in bout 1 compared with bouts 2, 3 and 4 (p < 0.02). However, for all bouts, there were no significant difference between omnivores and vegans in peak power (7.60 ± 1.55 vs. 8.16 ± 1.27, 7.52 ± 1.6 vs 7.61 ± 0.73, 7.00 ± 1.44 vs. 7.00 ± 1.05 and 6.95 ± 1.42 vs. 6.49 ± 0.90 W.kg-1, all p > 0.05) and in mean power (5.35 ± 0.93 vs. 5.69 ± 0.84, 5.10 ± 0.88 vs. 5.21 ± 0.49, 4.79 ± 0.81 vs. 4.79 ± 0.45 and 4.81 ± 0.81 vs. 4.69 ± 0.47 W.kg-1, all p > 0.05). Fatigue index and time to reach maximal power output were not affected by diet or bouts (all p > 0.05). CONCLUSIONS: These findings indicate that a vegan diet does not compromise sprint interval exercise performance.

Assuntos

Dieta Vegana , Veganos , Ergometria , Exercício Físico , Fadiga , Feminino , Humanos , Masculino

RESUMO

Although current research has contributed to the promotion of whole-food plant-based diets, few studies have examined healthy vegan dietary and lifestyle factors, especially in South America. Therefore, we aimed at investigating the adherence to healthy vegan lifestyle habits among Argentinian vegetarians and omnivorous, using a recently developed vegetarian lifestyle index adapted to the vegan dietary pattern. Also, accessibility of vegetarian foods, and the proportion of household income spent on food were assessed in a cross-sectional approach with 1454 participants. The population was comprised of females (84.9%), singles (55.0%), young-adults (mean age 32.1, standard deviation (SD) = 13.6), employed (50.8%), with high educational levels (50.4%), and low prevalence of both tobacco smoking (7.0%) and frequent alcohol consumption (7.6%). The mean score of adherence to healthy vegan lifestyle habits was 6.64 (SD = 1.72), with higher scores indicating better adherence. Non-vegetarians (5.75; 95% confidence interval (CI), 5.61⁻5.89) had a significantly lower adjusted mean score compared to semi-(6.32; 95% CI, 6.17⁻6.47), pesco-(6.99; 95% CI, 6.59⁻7.39), lacto-ovo-vegetarians (7.10; 95% CI, 6.96⁻7.24), as well as vegans (8.59; 95% CI, 8.35⁻8.83). The mean proportion of household income spent on food was significantly lower among vegans compared with other dietary patterns. The whole studied population showed a low consumption of whole grains, legumes, vegetables, nuts, and seeds. Although vegans showed a better diet and lifestyle pattern there is a need to improve eating and lifestyle habits to address risk factors for non-communicable diseases in Argentina.

Assuntos

Dieta Vegana , Estilo de Vida Saudável , Veganos , Adolescente , Adulto , Argentina , Índice de Massa Corporal , Peso Corporal , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estado Nutricional , Fatores Socioeconômicos , Adulto Jovem

RESUMO

The macrobiotic, Ma-Pi 2 diet (12% protein, 18% fat and 70% carbohydrate), has shown benefit in adults with type 2 diabetes mellitus (T2DM). This pooled analysis aims to confirm results from four, 21-day intervention studies with the Ma-Pi 2 diet, carried out in Cuba, China, Ghana and Italy. Baseline and end of study biochemical, body composition and blood pressure data, were compared using multivariate statistical methods and assessment of the Cohen effect size (d). Results showed that all measured indicators demonstrated significant changes (p < 0.001); most of them with a very high (d ≥ 1.30), or high (d = 0.80-1.29) effect size. The global effect size of the diet was Italy (1.96), China (1.79), Cuba (1.38) and Ghana (0.98). The magnitude of the individual effect on each variable by country, and the global effect by country, was independent of the sample size (p > 0.05). Similarly, glycemia and glycemic profiles in all four studies were independent of the sample size (p = 0.237). The Ma-Pi diet 2 significantly reduced glycemia, serum lipids, uremia and cardiovascular risk in adults with T2DM. These results suggest that the Ma-Pi 2 diet could be a valid alternative treatment for patients with T2DM and point to the need for further clinical studies. Mechanisms related to its benefits as a functional diet are discussed.

Assuntos

Diabetes Mellitus Tipo 2/dietoterapia , Dieta Macrobiótica , Glicemia/metabolismo , Doenças Cardiovasculares/prevenção & controle , China , Cuba , Carboidratos da Dieta , Gorduras na Dieta , Gana , Humanos , Itália , Lipídeos/sangue , Fatores de Risco

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The average per capita intake of dietary fibre and the relative contribution of different foods to its intake in the Mexican rural population was studied. Food consumption data were obtained from the National Nutrition Surveys of 1979 (21,248 families in 219 rural Mexican communities), and from a similar survey of the same communities in 1989 (20,759 families). Average per capita intake of total dietary fibre (TDF) ranged from 19.8 to 34.0 g/d (average 27.2 ± 3.3) in 1979 and from 17.5 to 27.1 g/d (average 22.5 ± 2.2) in 1989. About 13% of TDF in both surveys was contributed by soluble dietary fibre. Of the 19 regions of the country, 18 exhibited a significant reduction in TDF intake from 1979 to 1989 (p < 0.001). With the exception of two regions on the northern border, maize was the major single source of TDF (from 31 to 74% of TDF). The implication of these observations on disease patterns needs to be studied.