Ingesta dietética y patrón alimentario de las mujeres en periodo de gestación y lactancia de los pueblos indígenas de Colombia. Problemática que requiere urgente atención

Objetivo: Analizar el patrón alimentario y el riesgo de deficiencia en la ingesta usual de energía y nutrientes de las mujeres gestantes y lactantes de algunos pueblos indígenas. Metodología: Estudio descriptivo transversal, con información del componente de ingesta dietética tomada del Estudio nacional de la situación alimentaria y nutricional de los pueblos indígenas de Colombia, realizado entre 2013 y 2019, que incluyó 1028 mujeres indígenas gestantes (319) y lactantes (709), de las regiones norte y sur del país. Resultados: Se encontró una proporción superior al 90 % (Desviación estándar = 0,04) de gestantes y lactantes con consumo inferior al recomendado de calorías (p= 0,038). Alrededor del 70 % de las gestantes y lactantes no consumió lácteos el día anterior a la encuesta, y 50 % no consumió frutas y verduras. Con respecto a los micronutrientes, se encontraron, en las gestantes y lactantes, altas prevalencias del riesgo de deficiencia en la ingesta de vitamina C (50,3 y 80,2 %), folatos (80,4 y 95,1 %), zinc (87,6 y 96,3 %), hierro (88,9 y 68,6 %) y calcio (87,5 y 98,5 %). Conclusión: El consumo de alimentos y nutrientes en las mujeres indígenas gestantes y lactantes es deficiente en nutrientes claves para mantener su estado de salud y proporcionar los nutrientes necesarios a su bebé, y su patrón alimentario se clasifica como no saludable.

Objective: To analyze the dietary pattern and deficiency risk in the usual energy and nutrient intake of pregnant and lactating women from some indigenous peoples. Methodology: Cross-sectional descriptive study, with information from the dietary intake component taken from the National Survey of the food and nutritional situation of indigenous peoples in Colombia, conducted between 2013 and 2019, which included 1,028 pregnant (319) and lactating (709) indigenous women from the northern and southern regions of the country. Results: A proportion higher than 90% (SD = 0.04) of pregnant and lactating women with lower than recommended calorie intake was found (p = 0.038). Around 70% of pregnant and lactating women had no any dairy products the day before the survey, and 50% did not eat fruits and vegetables. Regarding micronutrients, high prevalence of deficiency risk in the intake of vitamin C (50.3 and 80.2%), folate (80.4 and 95.1%), zinc (87.6 and 96.3%), iron (88.9 and 68.6%) and calcium (87.5 and 98.5%) was found in pregnant and lactating women. Conclusion: Food and nutrient intake in pregnant and lactating indigenous women is deficient in key nutrients to maintain their general health and provide the necessary nutrients to their babies. Their dietary pattern is considered unhealthy.

Objetivo: Analisar o padrão alimentar e o risco de deficiência na ingestão usual de energia e nutrientes das mulheres gestantes e lactantes de alguns povos indígenas. Metodologia: Estudo descritivo transversal, com informação do componente de ingesta dietética tirada do Estudo nacional da situação alimentar e nutricional dos povos indígenas da Colômbia, realizado entre 2013 e 2019, que incluiu 1028 mulheres indígenas gestantes (319) e lactantes (709) das regiões norte e sul do país. Resultados: Encontrou-se uma proporção superior a 90% (Desvio-padrão = 0,04) de gestantes e lactantes com consumo inferior ao recomendado em calorias (p = 0,038). Ao redor de 70% das gestantes e lactantes não consumiu lácteos no dia prévio à enquete, e 50% não consumiu frutas e verduras. No que se refere aos micronutrientes, acharam-se nas gestantes e lactantes altas prevalências de risco de deficiência na ingestão de vitamina C (50,3 e 80,2 %), folatos (80,4 e 95,1 %), zinco (87,6 e 96,3 %), ferro (88,9 e 68,6 %) e cálcio (87,5 e 98,5 %). Conclusão: O consumo de alimentos e nutrientes nas mulheres indígenas gestantes e lactantes é deficiente em nutrientes-chave para manter seu estado de saúde e proporcionar os nutrientes necessários para o bebê; seu padrão alimentar classifica-se como não saudável.

Dietary intake assessment in a group of breastfeeding women in two populations of Antioquia, Colombia, 2021-2022 / Evaluación de ingesta dietética en un grupo de mujeres lactantes en dos poblaciones de Antioquia, Colombia, 2021-2022

Objectives: To describe the prevalence of the risk of under or overnutrition and the food intake pattern vis à vis the recommendations of the Ministry of Health and Social Protection and the Colombian Family Welfare Institute. Material and methods: Descriptive cross-sectional study carried out in healthy women receiving care in two hospitals of eastern Antioquia, with food and nutrition security in accordance with the Latin American and Caribbean Food Security Scale (ELCSA), in the first trimester of breastfeeding, assessed between 2021 and 2022. The clinical record was used as the source of information. The sociodemographic, clinical, anthropometric characteristics, as well as dietary and micronutrient intake, were measured. Descriptive statistics were used. The prevalence of deficient or excessive energy intake and the food consumption score (FCS) are presented. The EVINDI v5, PC-SIDE v1.0, Stata 16.1 and Jasp 0.16.4 software packages were used. Results: Overall, 30 breastfeeding women were included. The prevalence of the risk of deficient energy intake was 43 %, while the risk of excessive intake was 16 % and the risk of protein deficiency was 98 %. Intake exceeding the reference value for saturated fats was 86 %, and 72 % for simple carbohydrates. The consumption pattern was characterized by exceeding the recommendations for sugars (FCS = 1.29), milk and dairy products (FCS = 1.09), grains, roots, plantains and tubers (FCS = 1.04). Recommendations for the intake of fats (FCS = 0.70), meats, eggs, legumes, nuts, seeds (FCS = 0.49), fruits and vegetables (FCS = 0.41 were not met. Conclusions: The food intake pattern identified is far from meeting the national guidelines, limiting macro and micronutrient intake and contributing to the intergenerational malnutrition cycle. Additional research in the country is essential in order to identify other intake patterns and drive political action.

Objetivos: describir la prevalencia del riesgo de deficiencia o exceso en la ingesta de nutrientes y el patrón de consumo de alimentos de acuerdo con las recomendaciones establecidas por el Ministerio de Salud y Protección Social y el Instituto Colombiano de Bienestar Familiar. Materiales y métodos: se realizó un estudio transversal descriptivo en mujeres sanas que fueron atendidas en dos hospitales del oriente antoqueño, con seguridad alimentaria y nutricional (SAN) según la Escala Latinoamericana y Caribeña de Seguridad Alimentaria (ELCSA), en el primer trimestre de lactancia, evaluadas entre los años 2021 y 2022. La fuente de información fue la historia clínica. Se midieron las características sociodemográficas, clínicas, antropométricas y la ingesta dietética y de micronutrientes. Se empleó estadística descriptiva. Se presenta la prevalencia de déficit o exceso de ingesta calórica y el índice de relación de consumo (IRC). Se utilizaron los software EVINDI v5, PCSIDE v1.0, Stata 16.1 y Jasp 0.16.4. Resultados: se incluyeron 30 mujeres lactantes. La prevalencia de riesgo de deficiencia en la ingesta usual de energía fue 43 % y exceso 16 %; el riesgo de deficiencia proteica fue 98 %. El consumo superior al valor de referencia para grasa saturada fue 86 % y carbohidratos simples 72 %. El patrón de consumo se caracterizó por superar las recomendaciones para azúcares (IRC = 1,29), leche y derivados (IRC = 1,09), cereales, raíces, plátanos y tubérculos (IRC = 1,04). No cumplieron las recomendaciones en la ingesta de grasas (IRC = 0,70), carnes, huevos, leguminosas, frutos secos y semillas (IRC = 0,49), frutas y verduras (IRC = 0,41). Conclusiones: el patrón alimentario identificado dista de las guías nacionales, lo que limita el consumo de macro y micronutrientes, y contribuye al círculo intergeneracional de la malnutrición. Es fundamental realizar nuevas investigaciones en el país para identificar otros patrones de consumo e impulsar acciones de política al respecto.

Effect of an action-research nutrition intervention on the Global Diet Quality Score of Colombian adolescents.

Strategies to address the nutritional needs of adolescent girls and young women often focus on supplementation. In this study, an action-research approach involving a nutrition education and entrepreneurship intervention was carried out among adolescent girls and young women in poor neighborhoods of Medellín, Colombia. The intervention group significantly increased its intake of several nutrients, including energy, protein, total fat, saturated fat, monounsaturated fat, polyunsaturated fat, cholesterol, dietary fiber, calcium, zinc, and vitamins A, B2, B3, B9, and C. A significant increase was observed in the intake of the Global Diet Quality Score (GDQS) healthy food groups (other fruits, other vegetables, legumes, high-fat dairy products), accompanied by a decrease in the consumption of some unhealthy food groups (sweets and ice creams). A multivariate regression controlling for age, socioeconomic status, occupation, Household Hunger Scale, mean probability of adequacy, physical activity, and body self-perception showed that the nutrition intervention improved the total GDQS by 33% in the intervention group-a substantial improvement notwithstanding the study group's precarious social and economic conditions. We conclude that nutrition education and entrepreneurship models based on this approach may improve the dietary profile of this population and reduce future pressures from nutrition-related chronic diseases.

Food and nutrient intake of adolescent women in Medellín, Colombia.

Nutritional imbalance in adolescent girls causes alterations in health, reproductive cycles, and fetal outcomes of future generations. To evaluate the dietary pattern and prevalence of inadequate nutrient intake, a 24-hour multi-step food recall was carried out among 793 adolescent women (14-20 years old) from Medellin, Colombia. Their dietary pattern was characterized by lower than recommended intakes of fruits and vegetables (CRI 0.4, AMD 0.2), dairy (CRI 0.5, AMD 0.2), and proteins (CRI 0.8, AMD 0.3), while starches (CRI 1.2, AMD 0.4), fats (CRI 1.1, AMD 0.6), and sugars (CRI 1.0, AMD 0.5) were at similar or higher levels than recommendations. A high risk of deficiency was found in the usual intake of energy (53.0%), protein (39.8%), calcium (98.9%), folates (85.7%), iron (74.4%), thiamine (44.3%), vitamin C (31.3%), zinc (28.3%), vitamin A (23.4%), cyanocobalamin (17.3%), and pyridoxine (10.9%). A low risk of deficiency was noted in usual fiber intake (0.5%), and a higher than recommended intake was noted in saturated fat (100.0%) and simple carbohydrates (68.8%). Anecdotally, a large proportion of respondents saw decreases in their food consumption during the COVID-19 pandemic. These results suggest an urgent need for nutrition education programs to emphasize the importance of adequate nutrition among adolescent women.

Evaluación de ingesta dietética en un grupo de mujeres lactantes en dos poblaciones de Antioquia, Colombia, 2021-2022 / Dietary intake assessment in a group of breastfeeding women in two populations of Antioquia, Colombia, 2021-2022

Objetivos: Describir la prevalencia del riesgo de deficiencia o exceso en la ingesta de nutrientes y el patrón de consumo de alimentos de acuerdo con las recomendaciones establecidas por el Ministerio de Salud y Protección Social y el Instituto Colombiano de Bienestar Familiar. Materiales y métodos: Se realizó un estudio transversal descriptivo en mujeres sanas que fueron atendidas en dos hospitales del oriente antioqueño, con seguridad alimentaria y nutricional (SAN) según la Escala Latinoamericana y Caribeña de Seguridad Alimentaria (ELCSA), en el primer trimestre de lactancia, evaluadas entre los años 2021 y 2022. La fuente de información fue la historia clínica. Se midieron las características sociodemográficas, clínicas, antropométricas y la ingesta dietética y de micronutrientes. Se empleó estadística descriptiva. Se presenta la prevalencia de déficit o exceso de ingesta calórica y el índice de relación de consumo (IRC). Se utilizaron los software EVINDI v5, PC-SIDE v1.0, Stata 16.1 y Jasp 0.16.4. Resultados: Se incluyeron 30 mujeres lactantes. La prevalencia de riesgo de deficiencia en la ingesta usual de energía fue 43 % y exceso 16 %; el riesgo de deficiencia proteica fue 98 %. El consumo superior al valor de referencia para grasa saturada fue 86 % y carbohidratos simples 72 %. El patrón de consumo se caracterizó por superar las recomendaciones para azúcares (IRC = 1,29), leche y derivados (IRC = 1,09), cereales, raíces, plátanos y tubérculos (IRC = 1,04). No cumplieron las recomendaciones en la ingesta de grasas (IRC = 0,70), carnes, huevos, leguminosas, frutos secos y semillas (IRC = 0,49), frutas y verduras (IRC = 0,41). Conclusiones: El patrón alimentario identificado dista de las guías nacionales, lo que limita el consumo de macro y micronutrientes, y contribuye al círculo intergeneracional de la malnutrición. Es fundamental realizar nuevas investigaciones en el país para identificar otros patrones de consumo e impulsar acciones de política al respecto.

Objectives: To describe the prevalence of the risk of under or overnutrition and the food intake pattern vis á vis the recommendations of the Ministry of Health and Social Protection and the Colombian Family Welfare Institute. Material and methods: Descriptive cross-sectional study carried out in healthy women receiving care in two hospitals of eastern Antioquia, with food and nutrition security in accordance with the Latin American and Caribbean Food Security Scale (ELCSA), in the first trimester of breastfeeding, assessed between 2021 and 2022. The clinical record was used as the source of information. The sociodemographic, clinical, anthropometric characteristics, as well as dietary and micronutrient intake, were measured. Descriptive statistics were used. The prevalence of deficient or excessive energy intake and the food consumption score (FCS) are presented. The EVINDI v5, PC-SIDE v1.0, Stata 16.1 and Jasp 0.16.4 software packages were used. Results: Overall, 30 breastfeeding women were included. The prevalence of the risk of deficient energy intake was 43 %, while the risk of excessive intake was 16 % and the risk of protein deficiency was 98 %. Intake exceeding the reference value for saturated fats was 86 %, and 72 % for simple carbohydrates. The consumption pattern was characterized by exceeding the recommendations for sugars (FCS = 1.29), milk and dairy products (FCS = 1.09), grains, roots, plantains and tubers (FCS = 1.04). Recommendations for the intake of fats (FCS = 0.70), meats, eggs, legumes, nuts, seeds (FCS = 0.49), fruits and vegetables (FCS = 0.41) were not met. Conclusions: The food intake pattern identified is far from meeting the national guidelines, limiting macro and micronutrient intake and contributing to the intergenerational malnutrition cycle. Additional research in the country is essential in order to identify other intake patterns and drive political action.

Validation of the NOVA score for the consumption of ultra-processed foods by young women of Medellín, Colombia.

Ultra-processed foods (UPFs) are associated with deterioration in dietary quality and the development of chronic diseases. The NOVA score, developed in Brazil to assess UPF consumption quickly and inexpensively, is adapted and validated here using a sample of 203 young women from Medellín, Colombia. Food consumption was evaluated using 24-hour dietary recall and with the NOVA-UPF score. Food items were classified using the NOVA categories. The energy consumed from UPFs and its percentage of the total energy consumed was estimated. The association between the NOVA-UPF score and the percentage of energy from UPF (%UPF/E) was evaluated. Both variables were categorized into quintiles and concordance was estimated using prevalence and bias-adjusted kappa (PABAK). A regression model was used to assess the association between the NOVA-UPF score and critical nutrients. The mean NOVA-UPF score among study participants was 4.5, with 27% of the total energy they consumed coming from UPFs. There was a positive, linear association between the NOVA-UPF score and %UPF/E (p < 0.001) and substantial agreement (PABAK = 0.75) in the classification of participants between UPF energy quintiles and NOVA-UPF score quintiles. The NOVA-UPF score was positively and significantly associated with sodium, total fat, and saturated fat intake. We conclude that the adapted NOVA-UPF score may help monitor the consumption of UPFs among young women in Medellín.

Exploring the potential of meeting adolescent girls' nutrient needs in urban Colombia using food-based recommendations.

During adolescence, many young people gain greater food choice agency but also become increasingly exposed and susceptible to environmental pressures that influence their food choices. This coincides with increased nutritional needs, especially for girls. In urban Colombia, adolescent diets are often high in undesirable foods and low in nutritious foods, contributing to overweight and micronutrient deficiencies. This study aimed to explore the potential of improving diet quality using food-based recommendations (FBRs) within the parameters of local food systems and adolescents' existing dietary patterns to inform context-specific programmatic responses to malnutrition. We applied linear programming analysis to dietary data from 13- to 20-year-old girls in Medellin to identify problem nutrients, local micronutrient sources, and promising FBRs. Iron and, to a lesser extent, calcium targets were difficult to meet using optimized diets based on local foods, especially for 13- to 17-year-olds. High habitual consumption of foods with excessive salt, fat, or sugar provided >5% of micronutrients in optimized diets. Otherwise, significant micronutrient sources included legumes, meat, dairy, bread, potatoes, and fruit. FBRs met targets for 10 micronutrients but only 32%-39% recommended nutrient intake for iron. FBRs, including occasionally consumed foods and supplements, met all intake targets for less cost, indicating a need to increase access to nutrient-dense products.

Mobilizing adolescents and young women to promote healthy diets in urban settings of Colombia and Vietnam: Lessons from two action-research programs.

Adolescent and young women face grave nutrition challenges, but limited evidence exists on solutions to improve their diets. Action-research was done over 3 years (2020-2022) in secondary cities of Colombia (Medellin) and Vietnam (Thai Nguyen) to identify nutrient deficits in adolescent and young women diets; elaborate food-based recommendations to improve their nutritional status using Optifood linear programming; and engage respondents in incorporating suggested recommendations to their diet using a Social Innovation Challenge approach. A total of 1001 respondents were interviewed in Vietnam, 793 in Colombia. The probability of nutrient inadequacy in both locations was highest for iron and calcium, followed by the risk of deficiency for several other vitamins and minerals. Social Innovation Challenge teams (11 in Vietnam, 9 in Colombia) were created and supported in developing solutions to improve diets and tackle those deficiencies. Awards and resources were transferred to the most promising solutions to enable their implementation. Pre/post measurements of the interventions' impact using the Global Diet Quality Score as outcome metric showed significant improvement in the diets of Challenge participants. After introducing a series of companion articles that offer detailed results on those various steps, this paper draws strategic lessons from an action-research perspective.

Evaluación de ingesta dietética según el nivel socioeconómico en un grupo de personas vegetarianas en Colombia

Diferentes estudios han relacionado el nivel socioeconómico con la calidad de la dieta y la prevalencia de riesgo de deficiencia de nutrientes. En personas vegetarianas, cuando no se sigue una dieta adecuada, existe la posibilidad de tener una baja ingesta de ciertos nutrientes, principalmente de vitamina B12, vitamina D, calcio, hierro, zinc, ácidos grasos omega-3 y proteínas. Este estudio tiene como objetivo evaluar la ingesta dietética en personas vegetarianas según su nivel socioeconómico en una región de Colombia. Los participantes completaron un cuestionario en el cual se les preguntó por variables socioeconómicas, antropométricas y la frecuencia de consumo de 48 alimentos y suplementos. Posteriormente, a un subgrupo de la muestra se le realizaron dos recordatorios de 24 horas en diferentes días de la semana. Se encontró que, a menor nivel socioeconómico, hay un menor consumo de lácteos, cereales integrales, frutas y verduras. Así mismo, se observó que según el tipo de vegetarianismo hay diferencias en el consumo de cobalamina, fibra y calcio. Se concluye que, de manera similar a los omnívoros, se requiere de educación nutricional para mejorar la elección de los alimentos y lograr suplir los requerimientos nutricionales, independientemente del nivel económico.

Different studies have related socioeconomic status to diet quality and the prevalence of nutrient deficiency risk. Among vegetarians, when an adequate diet is not followed, there is a possibility of having a low intake of certain nutrients, mainly vitamin B12, vitamin D, calcium, iron, zinc, omega-3 fatty acids and proteins. This study aims to evaluate the dietary intake of vegetarians according to their socioeconomic level in a region of Colombia. Participants completed a questionnaire in which they were asked about socioeconomic and anthropometric variables and the frequency of consumption of 48 foods and supplements. Subsequently, a subgroup of the sample was given two 24-hour reminders on different days of the week. We found that the lower the socioeconomic level, the lower the consumption of dairy products, whole grains, fruits and vegetables. Likewise, it was observed that depending on the type of vegetarianism, there are differences in the consumption of cobalamin, fiber and calcium. We conclude that, similar to omnivores, nutritional education is required to improve the choice of foods and to meet nutritional requirements, regardless of economic level.

Validation of an instrument to assess food diversity in women of childbearing age in Medellín, Colombia.

OBJECTIVE: To validate a Food Diversity Questionnaire (CDA, for its name in Spanish) that identifies the prevalence of the risk of deficiency in the intake of eleven micronutrients. DESIGN: The CDA paper form, an online application for data entry and handling, was designed and compared with the 24-h recall (24HR) as a reference method. All data were processed in Personal Computer Software for Intake Distribution Estimation (PC-SIDE) v1 software. A descriptive analysis and comparisons between prevalence, concordance and reproducibility analyses were performed. SETTING: Medellín, Colombia. PARTICIPANTS: Women of childbearing age between 19 and 50 years (n 186) who worked for the Buen Comienzo programme in 2019. RESULTS: When comparing the adjusted 24HR technique and the CDA, there was no significant difference in population-level data at risk of deficiency in any micronutrient intake. However, based on individual-level data of the best linear unbiased predictor, the concordance analyses were weak, and although agreements were high according to the diagnostic performance tests, a good ability to detect deficiency was only observed in a few nutrients: vitamin A 100·0 %, Ca 98·7 %, Fe 92·8 %, folates 91·6 %, and pyridoxine 81·8 %. CONCLUSIONS: The CDA validated in this study is useful and faster at evaluating population-level data at risk of deficiency in the intake of Ca, Fe, Zn, thiamine, riboflavin, niacin, pyridoxine, folates, vitamin B12, vitamin C and vitamin A. Based on individual-level data, a good ability to detect deficiencies was observed in the intake of vitamin A, Ca, Fe, folates and pyridoxine.

Alimentación y uso del complemento alimentario en hogares de beneficiarios de la Corporación Educativa Combos / Diet and Use of a Nutrition Supplement in Household Beneficiares of the Corporación Educativa Combos Program

Resumen Antecedentes: es importante que al indagar sobre temas de alimentación y hambre se haga desde la perspectiva de los sujetos que experimentan y vivencian dichas situaciones, para comprender de forma integral dicho asunto. Objetivo: describir la alimentación en los hogares de niñas y niños beneficiarios del Programa de Atención Integral a la Niñez Trabajadora de la Corporación Educativa Combos y la percepción que tienen del complemento alimentario. Materiales y métodos: investigación con enfoque cualitativo, metodología de etnografía focalizada, técnicas de entrevista a profundidad y grupos focales. Resultados: las familias participantes viven situaciones de hambre; omiten comidas principales por falta de recursos económicos; sus gustos alimentarios en el hogar tienden a ser tradicionales; prefieren alimentos rendidores, saciadores y económicos, ricos en grasas y carbohidratos. Fuera del hogar prefieren comidas rápidas porque están disponibles y son más económicas. Las y los participantes perciben el complemento alimentario como un protector del hambre de las y los menores, y el paquete de alimentos como una manera de disponer de alimentos para compartirlos en familia. Conclusiones: en poblaciones empobrecidas se prefieren alimentos rendidores, saciadores y económicos que les permita sentirse llenos por más tiempo. Los servicios que brinda la Corporación fueron apreciados y valorados por las y los beneficiarios, pues estos han contribuido a mejorar su calidad de vida, a configurar el comensalismo familiar y a restituir el derecho a la alimentación en los hogares.

Abstract Background: The theme of food and nutrition security, hunger and the meaning of food programs for vulnerable population has been investigated, however, from a qualitative and comprehensive perspective, trying to identify from the perspective of the subjects who experience the phenomenon. Objective: To describe the in-home diet of children who are beneficiaries of the Programa de Atención Integral a la Niñez Trabajadora (PAINIT) of the Corporación Educativa COMBOS and their perceptions of a nutrition supplement. Materials and Methods: Research was conducted using a qualitative approach, focused ethnography studies, in-depth interviews, and focus groups. Results: Participating families live in situations of hunger and often omit main meals for lack of economic resources. At-home food tends to be traditional, with preference for satiating and inexpensive foods rich in fats and carbohydrates. Outside the home they prefer fast foods due to accesability and affordability. Participants perceive the nutrition supplement as a protector against child hunger, and the food basket as a way to share meals with family on weekends. Conclusions: Impoverished populations prefer foods that are accesible, satiating and economic that allow them to feel full for longer, and tend towards collective or family meals. The services provided by the Corporation were appreciated and valued by the beneficiaries as they have contributed to improving quality of life, family togetherness, and restoration to food security in homes.