{"id":1841,"date":"2026-09-21T15:30:08","date_gmt":"2026-09-21T20:30:08","guid":{"rendered":"https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/?p=1841"},"modified":"2026-09-21T15:30:08","modified_gmt":"2026-09-21T20:30:08","slug":"relacion-calorias-no-proteicas-nitrogeno","status":"publish","type":"post","link":"https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/relacion-calorias-no-proteicas-nitrogeno\/","title":{"rendered":"Relaci\u00f3n de calor\u00eda no proteicas\/gramo de nitr\u00f3geno"},"content":{"rendered":"<div>La relaci\u00f3n de calor\u00edas no proteicas y nitr\u00f3geno es un indicador importante en pacientes con nutrici\u00f3n parenteral (NP). En estos pacientes, la ingesta de prote\u00ednas se cubre mediante la administraci\u00f3n intravenosa de soluciones est\u00e9riles de amino\u00e1cidos libres. En caso de deficiencia cr\u00f3nica de uno o m\u00e1s amino\u00e1cidos, la s\u00edntesis de prote\u00ednas y, por consiguiente, las funciones vitales, podr\u00edan verse comprometidas. Ante una ingesta insuficiente, se utilizar\u00e1n los amino\u00e1cidos musculares, lo que provocar\u00e1 una reducci\u00f3n y atrofia de la masa muscular.<\/div>\n<p>Las prote\u00ednas musculares se encuentran en constante renovaci\u00f3n, con s\u00edntesis y degradaci\u00f3n continuas de nuevas prote\u00ednas. Los amino\u00e1cidos provenientes de la degradaci\u00f3n proteica y los suministrados externamente forman la denominada &#8220;reserva de nitr\u00f3geno o amino\u00e1cidos&#8221;, una gran mezcla de todos los amino\u00e1cidos disponibles para la s\u00edntesis de nuevas prote\u00ednas, mol\u00e9culas de nitr\u00f3geno no proteicas y la producci\u00f3n de energ\u00eda (ver Figura 1) <a class=\"bibliography-sup\" title=\"1. Iacone R, Scanzano C, Santarpia L, Cioffi I, Contaldo F, Pasanisi F. Macronutrients in Parenteral Nutrition: Amino Acids. Nutrients. 2020 Mar 14;12(3):772. doi: 10.3390\/nu12030772. PMID: 32183395; PMCID: PMC7146427.\" href=\"#\" data-bibliography-link=\"\">(1)<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1842 aligncenter\" src=\"https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-1-300x147.png\" alt=\"s\u00edntesis de nuevas prote\u00ednas\" width=\"608\" height=\"298\" srcset=\"https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-1-300x147.png 300w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-1-1024x502.png 1024w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-1-768x376.png 768w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-1-1536x753.png 1536w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-1-2048x1004.png 2048w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-1-580x284.png 580w\" sizes=\"auto, (max-width: 608px) 100vw, 608px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Como fuente de nitr\u00f3geno, los amino\u00e1cidos se utilizan en la s\u00edntesis de prote\u00ednas y en la reposici\u00f3n de las reservas proteicas agotadas secundariamente a la enfermedad. El contenido de nitr\u00f3geno var\u00eda seg\u00fan la concentraci\u00f3n de los amino\u00e1cidos; sin embargo, generalmente se asume que las soluciones de amino\u00e1cidos contienen un 16 % de nitr\u00f3geno (6,25 g de prote\u00edna = 1 g de nitr\u00f3geno) <a class=\"bibliography-sup\" title=\"2. Berlana D. Parenteral Nutrition Overview. Nutrients. 2022 Oct 25;14(21):4480. doi: 10.3390\/nu14214480. PMID: 36364743; PMCID: PMC9659055.\" href=\"#\" data-bibliography-link=\"\">(2)<\/a>.<\/p>\n<p>La s\u00edntesis y degradaci\u00f3n de prote\u00ednas requieren energ\u00eda y, por lo tanto, son sensibles a una reducci\u00f3n o aumento en la ingesta energ\u00e9tica. Existe una fuerte relaci\u00f3n entre el requerimiento de prote\u00ednas y la ingesta energ\u00e9tica. En consecuencia, la ingesta energ\u00e9tica (proveniente principalmente de carbohidratos y l\u00edpidos) influye en las necesidades de amino\u00e1cidos y viceversa <a class=\"bibliography-sup\" title=\"1. Iacone R, Scanzano C, Santarpia L, Cioffi I, Contaldo F, Pasanisi F. Macronutrients in Parenteral Nutrition: Amino Acids. Nutrients. 2020 Mar 14;12(3):772. doi: 10.3390\/nu12030772. PMID: 32183395; PMCID: PMC7146427.\" href=\"#\" data-bibliography-link=\"\">(1)<\/a>.<\/p>\n<p>La cantidad de energ\u00eda suministrada con carbohidratos y\/o l\u00edpidos afecta el balance de nitr\u00f3geno, el uso de amino\u00e1cidos (para la s\u00edntesis de prote\u00ednas o la producci\u00f3n de energ\u00eda) y la excreci\u00f3n urinaria de nitr\u00f3geno. Por lo tanto, al calcular el requerimiento de amino\u00e1cidos, es necesario considerar el balance energ\u00e9tico del organismo <a class=\"bibliography-sup\" title=\"1. Iacone R, Scanzano C, Santarpia L, Cioffi I, Contaldo F, Pasanisi F. Macronutrients in Parenteral Nutrition: Amino Acids. Nutrients. 2020 Mar 14;12(3):772. doi: 10.3390\/nu12030772. PMID: 32183395; PMCID: PMC7146427.\" href=\"#\" data-bibliography-link=\"\">(1)<\/a>.<\/p>\n<p>Un aporte energ\u00e9tico adecuado permitir\u00eda el uso de una cantidad suficiente de amino\u00e1cidos para la s\u00edntesis exclusiva de prote\u00ednas, reduciendo la excreci\u00f3n urinaria de nitr\u00f3geno y aumentando el balance de nitr\u00f3geno. Por el contrario, un aporte energ\u00e9tico insuficiente obligar\u00e1 al organismo a utilizar parte de los amino\u00e1cidos para producir energ\u00eda, con el consiguiente aumento de la excreci\u00f3n urinaria de nitr\u00f3geno y la reducci\u00f3n del balance de nitr\u00f3geno <a class=\"bibliography-sup\" title=\"1. Iacone R, Scanzano C, Santarpia L, Cioffi I, Contaldo F, Pasanisi F. Macronutrients in Parenteral Nutrition: Amino Acids. Nutrients. 2020 Mar 14;12(3):772. doi: 10.3390\/nu12030772. PMID: 32183395; PMCID: PMC7146427.\" href=\"#\" data-bibliography-link=\"\">(1)<\/a>.<\/p>\n<p>En resumen, existe una correlaci\u00f3n inversa entre los requerimientos de amino\u00e1cidos y la ingesta de energ\u00eda: a mayor cantidad de amino\u00e1cidos, se requiere menos energ\u00eda, y viceversa. El concepto de la relaci\u00f3n calor\u00edas no proteicas\/nitr\u00f3geno (NPC\/N) se basa en la regla de que el aporte energ\u00e9tico es necesario para prevenir la oxidaci\u00f3n de los amino\u00e1cidos <a class=\"bibliography-sup\" title=\"1. Iacone R, Scanzano C, Santarpia L, Cioffi I, Contaldo F, Pasanisi F. Macronutrients in Parenteral Nutrition: Amino Acids. Nutrients. 2020 Mar 14;12(3):772. doi: 10.3390\/nu12030772. PMID: 32183395; PMCID: PMC7146427.\" href=\"#\" data-bibliography-link=\"\">(1)<\/a> Ver figura 2<a class=\"bibliography-sup\" title=\"3. Cruz R. Herrera T. Fundamentos Cl\u00ednicos de la Atenci\u00f3n Nutricional en Hospitalizaci\u00f3n y en Consulta. 1a edici\u00f3n. Lima: Fondo Editorial. IIDENUT. 2013\" href=\"#\" data-bibliography-link=\"\"> (3)<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1843 aligncenter\" src=\"https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-2-300x117.png\" alt=\"relaci\u00f3n calor\u00edas no proteicas\/nitr\u00f3geno\" width=\"638\" height=\"249\" srcset=\"https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-2-300x117.png 300w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-2-1024x399.png 1024w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-2-768x299.png 768w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-2-1536x599.png 1536w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-2-2048x799.png 2048w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-2-580x226.png 580w\" sizes=\"auto, (max-width: 638px) 100vw, 638px\" \/><\/p>\n<p>Figura 2. Relaci\u00f3n de Calor\u00edas No Proteicas \/ gramo de nitr\u00f3geno (Tomado de 3)<\/p>\n<p><strong>\u00bfC\u00f3mo calcular la relaci\u00f3n de calor\u00edas no proteicas y nitr\u00f3geno?<\/strong><\/p>\n<ol>\n<li>Se calculan las calor\u00edas no proteicas: este valor es el resultado de la energ\u00e9tico aportada por los carbohidratos y l\u00edpidos<\/li>\n<li>C\u00e1lculo de los gramos de nitr\u00f3geno: el valor total de prote\u00ednas debe ser dividido entre 6.25 para llevarlo a gramos de nitr\u00f3geno.<\/li>\n<li>Relaci\u00f3n calor\u00edas no proteica por gramos de nitr\u00f3geno. La relaci\u00f3n se calcula dividiendo las calor\u00edas no proteicas entre los gramos de nitr\u00f3geno<\/li>\n<\/ol>\n<p>La relaci\u00f3n NPC\/N oscila entre 125 y 225 kcal\/g N en pacientes con NP sin estr\u00e9s. Seg\u00fan las gu\u00edas de la Sociedad Americana de Nutrici\u00f3n Parenteral y Enteral (ASPEN), la mejor relaci\u00f3n NPC\/N es de aproximadamente 70:1 a 100:1 para pacientes cr\u00edticos, reduci\u00e9ndose a 30:1 a 50:1 para pacientes obesos cr\u00edticos <a class=\"bibliography-sup\" title=\"1. Iacone R, Scanzano C, Santarpia L, Cioffi I, Contaldo F, Pasanisi F. Macronutrients in Parenteral Nutrition: Amino Acids. Nutrients. 2020 Mar 14;12(3):772. doi: 10.3390\/nu12030772. PMID: 32183395; PMCID: PMC7146427.\" href=\"#\" data-bibliography-link=\"\">(1)<\/a>.<\/p>\n<p><strong>Otros rangos sugeridos de acuerdo con el estr\u00e9s de cada paciente son:<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1844 aligncenter\" src=\"https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-3-300x180.png\" alt=\"La relaci\u00f3n NPC\/N\" width=\"416\" height=\"250\" srcset=\"https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-3-300x180.png 300w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-3-1024x614.png 1024w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-3-768x461.png 768w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-3-580x348.png 580w, https:\/\/lam.unitedforclinicalnutrition.com\/es-co\/wp-content\/uploads\/sites\/7\/2026\/09\/relacion-de-calorias-3.png 1400w\" sizes=\"auto, (max-width: 416px) 100vw, 416px\" \/><\/p>\n<p><strong>Tabla 1. Rangos de la Relaci\u00f3n de Calor\u00edas No Proteicas \/ gramo de nitr\u00f3geno de acuerdo con el estr\u00e9s (Tomado de 3)<\/strong><\/p>\n<p>Debido a la importancia de las prote\u00ednas en el organismo, a las numerosas funciones que cumplen tanto estructurales, funcionales y metab\u00f3licas, la s\u00edntesis y degradaci\u00f3n proteica, as\u00ed como la oxidaci\u00f3n de los amino\u00e1cidos est\u00e1n estrechamente regulados para preservar la masa magra corporal, a trav\u00e9s del recambio proteico <a class=\"bibliography-sup\" title=\"4. D\u00edaz, Mar Juan, A. Serrano L\u00e1zaro, and A. Mesejo Arizmendi. \" href=\"#\" data-bibliography-link=\"\">(4)<\/a>.<\/p>\n<p>Es de especial relevancia hacer un an\u00e1lisis individual de los requerimientos de los pacientes, tanto energ\u00e9ticos como proteicos, teniendo en cuenta tanto la patolog\u00eda aguda y el estado catab\u00f3lico como las enfermedades de base. Se debe tener en cuenta que es necesaria la administraci\u00f3n de cantidades adecuadas de calor\u00edas no proteicas para que los amino\u00e1cidos sean utilizados en la s\u00edntesis proteica, minimizando su oxidaci\u00f3n como fuente de energ\u00eda <a class=\"bibliography-sup\" title=\"4. D\u00edaz, Mar Juan, A. Serrano L\u00e1zaro, and A. Mesejo Arizmendi. \" href=\"#\" data-bibliography-link=\"\">(4)<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La relaci\u00f3n de calor\u00edas no proteicas y nitr\u00f3geno es un indicador importante en pacientes con nutrici\u00f3n parenteral (NP). En estos pacientes, la ingesta de prote\u00ednas se cubre mediante la administraci\u00f3n intravenosa de soluciones est\u00e9riles de amino\u00e1cidos libres. En caso de deficiencia cr\u00f3nica de uno o m\u00e1s amino\u00e1cidos, la s\u00edntesis de prote\u00ednas y, por consiguiente, las [&hellip;]<\/p>\n","protected":false},"author":5728,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[47,32,1],"tags":[],"class_list":["post-1841","post","type-post","status-publish","format-standard","hentry","category-articulo-2","category-implementacion-de-la-nutricion-clinica","category-sin-categorizar"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Relaci\u00f3n de calor\u00edas no proteicas y nitr\u00f3geno: c\u00e1lculo<\/title>\n<meta name=\"description\" content=\"Conoce qu\u00e9 es la relaci\u00f3n de calor\u00edas no proteicas y nitr\u00f3geno, c\u00f3mo se calcula y sus 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