Affordable Nutrient Density in Brazil: Nutrient Profiling in Relation to Food Cost and NOVA Category Assignments.

Affordable nutrient density is provided by low-cost and nutrient-rich foods. We explored nutrient density, cost, and NOVA category assignments within and across food groups in Brazil. The nutrient density of the foods (n = 591) was assessed using the Nutrient Rich Food Index (NRF9.3) based on protein, fiber, vitamin A (RAE), vitamin C, vitamin E (mg), Ca, Fe, K and Mg; and NRF6.3 score for priority nutrients: Ca, Fe, Zn, vitamin A, vitamin B12, and folate. Nutrients to limit (LIM) were saturated fat, added sugar, and sodium. Affordability was defined as the ratio of energy and/or nutrient density of foods and retail price per 100 kcal. Foods were classified as minimally processed (n = 106), processed (n = 188), ultra-processed (n = 286), and culinary ingredients (n = 11). Nutrient density was positively linked to per 100 kcal food cost. Ultra-processed foods (UPF) contained more energy, fat, sugar, and salt and had lower NRF scores compared to minimally processed (MPF) foods. UPF was also less expensive than MPF foods. Nutrient-rich foods below the median per 100 kcal costs included MPF foods, but also processed foods (PF) and UPF. Affordable nutrient-rich foods can be found in the different categories of the NOVA classification.

Evaluation of Lactobacillus Plantarum Additive on Growth Performance, Excreta Microbiota, Nutrient Digestibility, Gas Emission, and Meat Quality in Ross308-Broilers

The intention of this study was to analyze the effects of Lactobacillus plantarum (L. plantarum) additive with different nutrient density diets on growth performance, excreta microbiota, nutrient digestibility, gas emission, and meat quality in Ross308-broilers. A total of 576 mixed-sex, 1-d old Ross-308 chicks were randomly allocated to one of four treatment groups with 8 replication and 18 chicks/cage. For a period of 35 days, HD and LD group chicks were fed with commercial corn and soybean meal-based basal diet which contains high and low nutrient density diet, respectively. The other treatment groups LP1 and LP2 chicks were fed with LD+ 0.05% and 0.01 % of L. plantarum, respectively. During day 21 and the overall experimental period, the body weight gain of broilers significantly increased (p<0.05) in HD and L. plantarum groups compared to the LD group. On day 35, broilers fed L. plantarum additive had significantly increased (p<0. 05) the nutrient digestibility of dry matter and nitrogen compared to those fed HD and LD diets. Moreover, dietary inclusion of L. plantarum additive had significantly increased (p<0.05) lactobacillus population and decreased (p>0.05) E. coli and ammonium emission. However, the meat quality traits were not affected by experimental diets. In conclusion, we infer that a low-density diet with 0.1% of L. plantarum additive could serve as an excellent alternative feed additive to enhance the performance of broilers.(AU)

¿Cómo comen los argentinos? Consumos, brechas y calidad de dieta / How do argentines eat? Consumption, gaps and diet quality

Resumen El objetivo del trabajo fue analizar los consumos alimentarios de la población argentina, identificar sus principales brechas alimentarias, determinar su magnitud e intensidad y analizar la calidad de dieta resultante. Se trabajó con la base de datos de la Encuesta Nacional de Gastos de los Hogares (ENGHo) 2017/2018. Se extrajeron y analizaron registros de compras de 383 alimentos y bebidas; los consumos se expresaron en energía y nutrientes (tabla SARA) y se calcularon medidas de Índice de Densidad de Nutrientes (IDN) y brechas alimentarias con relación a las recomendaciones de una dieta saludable (brecha promedio, magnitud de hogares con brechas e intensidad de la brecha). El patrón alimentario hallado refleja consumos bajos en alimentos protectores y preventivos de enfermedades crónicas y monotonía de la dieta. Las brechas reflejan déficits (promedio 60%) en hortalizas no feculentas, frutas, legumbres, granos y cereales integrales y leche, yogur y quesos. Harinas y otros productos feculentos, alimentos ocasionales y carnes registran brechas excedentarias en hogares de todos los niveles de ingreso, excepto el 1° quintil en carnes y en alimentos ocasionales. Solo 11% de los hogares presenta una calidad de dieta alta. Todos los resultados hallados son peores en los quintiles de ingresos más bajos y en hogares con presencia de niños, niñas y adolescentes. Las principales conclusiones se refieren a la monotonía alimentaria, las amplias brechas, su magnitud e intensidad en los alimentos de mejor densidad nutricional y su expresión en una calidad de dieta apenas intermedia. El exceso y desequilibrio en la ingesta de alimentos fuente de hidratos de carbono, con un balance desfavorable hacia legumbres, granos y cereales integrales, así como el exceso de alimentos ocasionales y la necesidad de disminuir los altos consumos de carnes en amplios sectores de la población.

Abstract The objective of this research was to analyze the food consumption of the Argentine population, identify its main food gaps, determine its magnitude and intensity and analyze the resulting quality of diet. We analyzed the database of the National Household Expenditure Survey (ENGHo) 2017/2018. Purchase records of 383 food and beverages were extracted and analyzed; consumptions were expressed in energy and nutrients (SARA table) and Nutrient Density (IDN) measures and food gaps were calculated in relation to the recommendations of a healthy diet (average gap, magnitude of households with gaps and intensity of the gap). The dietary pattern found reflects low intakes of protective and preventive foods for chronic diseases and monotony of the diet. The gaps reflect deficits (average 60% ) in non-starchy vegetables, fruits, legumes, grains and whole grains, milk, yogurt and cheeses. Flour and other starchy products, occasional foods and meats register surplus gaps in households of all income levels, except for the 1st quintile in meats and occasional foods. Only 11% of households have a high quality of diet. All the results found are worse in the lowest income quintiles and in households with children and adolescents. The main conclusions refer to food monotony, wide gaps, its magnitude and intensity in foods with the best nutritional density and its expression in a barely intermediate quality of diet. The excess and imbalance in the intake of carbohydrates source foods, with an unfavourable balance towards legumes, grains and whole grains, as well as the excess of occasional foods and the need to reduce the high consumption of meat in large sectors of the population.

Nutrient Density as a Dimension of Dietary Quality: Findings of the Nutrient Density Approach in a Multi-Center Evaluation.

The nutrient adequacy of a diet is typically assessed by comparing estimated nutrient intakes with established average nutrient requirements; this approach does not consider total energy consumed. In this multinational survey investigation in Indonesia, Mexico, and South Africa, we explore the applications of the "critical nutrient-density approach"-which brings energy requirements into the equation-in the context of public health epidemiology. We conducted 24 h dietary recalls in convenience samples of normal-weight (BMI 18.5-25 kg/m2) or obese (BMI > 30 kg/m2), low-income women in three settings (n = 290). Dietary adequacy was assessed both in absolute terms and using the nutrient density approach. No significant differences in energy and nutrient intakes were observed between normal-weight and obese women within any of the three samples (p > 0.05). Both the cut-point method (% of EAR) and critical nutrient density approach revealed a high probability of inadequate intakes for several micronutrients but with poor concordance between the two methods. We conclude that it may often require some approximate estimate of the habitual energy intake from an empirical source to apply a true critical nutrient density reference for a population or subgroup. This will logically signify that there would be more "problem nutrients" in the diets examined with this nutrient density approach, and efforts toward improved food selection or food- or biofortification will frequently be indicated.

Effects of graded levels of exogenous xylanase in corn-soy diets with two amino acid density and fat levels postpellet in broiler chickens: live performance, energy utilization, digestibility, and carcass characteristics.

This experiment evaluated the interactive effects among xylanase (XL; 0, 8,000, 16,000, and 32,000 BXU/kg), amino acid density (AA; high and low 10% difference), and additional fat (AF; 0 or +1.17%) applied postpellet in corn-soybean meal diets with dried distillers grains with solubles on performance, energy utilization, digestibility, and carcass traits in Ross 708 male broilers. A completely randomized block (pen location) design with 16 treatments arranged factorially (4 XL levels, 2 AA, and 2 AF) was analyzed using mixed models. No significant interactions or main effects were observed for feed intake at 49 d (P > 0.05) but chicks were heavier when consuming diets containing 0 or 8,000 BXU/kg (P = 0.015), high AA (P < 0.001), and 1.17% AF (P < 0.001). Feed efficiency did not vary with XL supplementation (P > 0.05) but was improved in broilers fed the higher AA and AF diet (P = 0.015 for AA × AF). AME, GE, and CP digestibility were assessed at days 17 and 42. There were multiple interactions observed at day 17 with a significant three-way showing that AME and CP digestibility improved when increasing the XL and AF levels in the high AA fed birds compared with the low-density diets. At day 42, XL and AF significantly affected AMEn, GE, or CP digestibility; however, there was a significant interaction between XL and AF. Diets supplemented with 1.17% AF improved AMEn significantly in broilers fed the highest XL level. Breast yield was not affected by treatments, but wing yield decreased with high AA density when diets contained 16,000 BXU/kg without differences for the other diets (P = 0.04 for XL × AA). Effects of XL, AA, and AF interactions on performance and cut-up-part yields have to be considered until day 42 for most of the variables studied. However, at 49 d of age, the dietary AA density and AF did not markedly influence the response to XL in maize-based diets.

Supra-nutritional Levels of Selected B Vitamins in Animal or Vegetable Diets for Broiler Chicken

The objective of this study was to evaluate the effects of supra-nutritional level of selected B vitamins in different types of diet on broiler performance. Two experiments were conducted using male and female one-day-old chicks (n=288 each; initial body weights in experiment I and II was, respectively, 47.57 ± 0.43, and 47.98 ± 0.31) reared in batteries up to 18 days. In experiment I, the chicks were fed a corn and soybean meal-based diet and, in experiment II, a diet containing oxidized animal by-product meals and soybean oil was used. Both experiments followed a completely randomized design in a 3 × 2 factorial arrangement, consisting of the factors: i) supplementation levels of selected B vitamins (control, 3- or 6-times control of the vitamins riboflavin, pantothenic acid, niacin, folic acid and vitamin B12); ii) dietary nutritional density (low or high), totaling 6 treatments and 8 replicates of 6 birds each (3 males and 3 females). As result of this study, in Exp. I, chicks showed higher weight gain (741.1 g vs. 697.3 g) and feed intake (920.2 vs. 878.5 g) when fed low-nutritional density diet with supra-nutritional vitamin level 6-times higher than the control. However, this effect was not found in the performance of chickens fed high-nutritional density diet. Despite the poor quality of the ingredients used in Exp. II, no statistical effect was shown of the use of vitamin super-dose in rations with different dietary nutrient density. Feed conversion ratio (FCR) was significantly improved for chickens fed high-nutritional density diet (1.191 vs. 1.246 in experiment I, 1.244 vs. 1.275 in experiment II, p 0.01). We conclude that birds fed a vegetable diet formulated with low-dietary density improved body weight (BW) and feed intake (FI) when receiving supra-nutritional levels of vitamins 6-times higher than the control.

Supra-nutritional Levels of Selected B Vitamins in Animal or Vegetable Diets for Broiler Chicken

The objective of this study was to evaluate the effects of supra-nutritional level of selected B vitamins in different types of diet on broiler performance. Two experiments were conducted using male and female one-day-old chicks (n=288 each; initial body weights in experiment I and II was, respectively, 47.57 ± 0.43, and 47.98 ± 0.31) reared in batteries up to 18 days. In experiment I, the chicks were fed a corn and soybean meal-based diet and, in experiment II, a diet containing oxidized animal by-product meals and soybean oil was used. Both experiments followed a completely randomized design in a 3 × 2 factorial arrangement, consisting of the factors: i) supplementation levels of selected B vitamins (control, 3- or 6-times control of the vitamins riboflavin, pantothenic acid, niacin, folic acid and vitamin B12); ii) dietary nutritional density (low or high), totaling 6 treatments and 8 replicates of 6 birds each (3 males and 3 females). As result of this study, in Exp. I, chicks showed higher weight gain (741.1 g vs. 697.3 g) and feed intake (920.2 vs. 878.5 g) when fed low-nutritional density diet with supra-nutritional vitamin level 6-times higher than the control. However, this effect was not found in the performance of chickens fed high-nutritional density diet. Despite the poor quality of the ingredients used in Exp. II, no statistical effect was shown of the use of vitamin super-dose in rations with different dietary nutrient density. Feed conversion ratio (FCR) was significantly improved for chickens fed high-nutritional density diet (1.191 vs. 1.246 in experiment I, 1.244 vs. 1.275 in experiment II, p 0.01). We conclude that birds fed a vegetable diet formulated with low-dietary density improved body weight (BW) and feed intake (FI) when receiving supra-nutritional levels of vitamins 6-times higher than the control.(AU)

Diseño de una canasta saludable de alimentos y criterios para una evaluación comparativa de precios y densidad de nutrientes / Design of a healthy food basket and criteria for a comparative evaluation of prices and nutrient density

Introducción: asegurar la asequibilidad de la población a una alimentación saludable requiere abordar la conformación y el seguimiento del valor de una canasta saludable de alimentos y de los precios diferenciales de alimentos según calidad nutricional. Objetivos: diseñar una canasta saludable de alimentos (CSA) que resulte consistente con las Guías Alimentarias para la Población Argentina (GAPA). Los objetivos específicos son la definición de un índice de calidad nutricional de alimentos y bebidas, la conformación de la CSA por grupos de alimentos, su valoración económica, y comparar la calidad nutricional y los precios de alimentos disponibles en el mercado. Metodología: el marco metodológico se basó en las GAPA y el concepto de densidad nutricional. Para definir el Índice de densidad nutricional (IDN) de alimentos se consideraron 9 nutrientes esenciales (proteínas, fibra, calcio, hierro, zinc, potasio, Vitaminas A, C y B9), 3 nutrientes críticos (azúcares, sodio y ácidos grasos saturados), el contenido de almidón, y las ingestas recomendadas del Institute of Medicine (IOM). Se elaboraron especificaciones sobre cantidades, variedad y calidades de alimentos para la CSA según grupo de alimentos. Los precios fueron registrados en comercios de la Ciudad y partidos aledaños de Buenos Aires. Resultados: al aplicar el IDN a un conjunto de 320 alimentos y bebidas consumidos por la población argentina, se los clasificó en tres terciles de calidad. El ordenamiento resultante es consistente con las recomendaciones de las GAPA. El valor de la CSA fue de $ 3759.- mensuales (marzo 2018) para la unidad de referencia de 2000 kcal. Al comparar las densidades de nutrientes y precios de los alimentos, hortalizas feculentas, huevo y legumbres son las categorías con mejor relación calidad nutricional/precio. Los alimentos de mejor calidad nutricional tienen un precio de $ 14.- por 100 kcal y los de calidad mínima $ 4,5.- Discusión: la CSA y el IDN son herramientas para orientar y evaluar políticas que promuevan una mejor calidad de dieta.

Introduction: ensuring the population's accessibility to a healthy diet requires addressing the conformation and monitoring of the value of a healthy food basket and the differential prices of foods following nutritional quality. Objectives: to design a healthy food basket (HFB) consistent with the recommendations given by Argentina's dietary guidelines (GAPA). The specific objectives were to define a nutritional quality index for foods and beverages, the composition of HFB by food group, assess values, and compare the prices and nutritional quality of foods available in local markets. Methods: the methodological framework was based on GAPA and the concept of nutritional density. To define the Nutritional Density Index (NDI) of food, 9 essential nutrients (proteins, fiber, calcium, iron, zinc, potassium, Vitamins A, C and B9), 3 critical nutrients (sugars, sodium and saturated fatty acids), the starch content, and the recommended intakes of the Institute of Medicine (IOM) were considered. Specifications were prepared on quantities, variety and qualities of food for the HFB, according to the food group. The prices were registered in shops in the City Centre (CABA) and neighboring municipalities of Buenos Aires. Results: when applying the NDI to a set of 320 foods and beverages consumed by the Argentine population, they were classified into three tertiles of quality. The resulting order is consistent with the recommendations of GAPA. The value of the HFB was $ 3759.- monthly (March 2018) for the reference unit of 2000 kcal. When comparing nutrient densities and food prices, starchy vegetables, eggs and legumes are the categories with the best nutritional quality / price ratio. The foods of better nutritional quality have a price of $ 14.- per 100 kcal and those of minimum quality $ 4.5.- Discussion: the HFB and NDI are tools to guide and evaluate policies that promote a better diet quality.

Productive and Economic Performance of Broiler Chickens Subjected to Different Nutritional Plans

The objective of the study was to evaluate the effect of nutritional plans on the productive and economic performance of Hubbard Flex broiler chickens. A completely randomized experimental design was applied, consisting of five treatments. Treatments consisted of five different nutritional plans: a basal diet containing the nutrient and energy levels recommended by literature and designated reference diet; two diets containing 1.5% and 3% lower levels than the reference diet; and two diets containing 1.5% and 3% higher levels than the reference diet (-3%, -1.5%, reference plan, +1.5% and +3%). Feed intake (FI), body weight (BW), feed conversion rate (FCR), livability (L) and productive efficient index (PEI) were determined when broilers were 42 days old. Broilers were processed, and carcass and parts (breast fillet, leg, and wings) yields were determined. The economic viablility of the nutitional plans was evaluated as a function of feed cost/kg live and carcass weights, economic efficiency index (EEI), and cost index (CI). Feed intake and the feed conversion rate decreased as dietary nutrient and energy levels increased. Feed cost/kg live weight, economic efficiency index, and cost index cost increased as dietary nutrient and energy levels increased. Feed intake, feed conversion ratio, production efficiency index, and breast yield improved with increasing nutritional and energy levels. However, worse economic results were obtained with higher nutritional and energy levels.

Productive and Economic Performance of Broiler Chickens Subjected to Different Nutritional Plans

The objective of the study was to evaluate the effect of nutritional plans on the productive and economic performance of Hubbard Flex broiler chickens. A completely randomized experimental design was applied, consisting of five treatments. Treatments consisted of five different nutritional plans: a basal diet containing the nutrient and energy levels recommended by literature and designated reference diet; two diets containing 1.5% and 3% lower levels than the reference diet; and two diets containing 1.5% and 3% higher levels than the reference diet (-3%, -1.5%, reference plan, +1.5% and +3%). Feed intake (FI), body weight (BW), feed conversion rate (FCR), livability (L) and productive efficient index (PEI) were determined when broilers were 42 days old. Broilers were processed, and carcass and parts (breast fillet, leg, and wings) yields were determined. The economic viablility of the nutitional plans was evaluated as a function of feed cost/kg live and carcass weights, economic efficiency index (EEI), and cost index (CI). Feed intake and the feed conversion rate decreased as dietary nutrient and energy levels increased. Feed cost/kg live weight, economic efficiency index, and cost index cost increased as dietary nutrient and energy levels increased. Feed intake, feed conversion ratio, production efficiency index, and breast yield improved with increasing nutritional and energy levels. However, worse economic results were obtained with higher nutritional and energy levels.(AU)