{"id":8222,"date":"2026-10-27T21:04:03","date_gmt":"2026-10-27T21:04:03","guid":{"rendered":"https:\/\/zawaya24.com\/ar\/concentre-tomate-memoire-attention-etude-2710\/"},"modified":"2026-10-27T21:04:07","modified_gmt":"2026-10-27T21:04:07","slug":"concentre-tomate-memoire-attention-etude-2710","status":"publish","type":"post","link":"https:\/\/zawaya24.com\/es\/concentre-tomate-memoire-attention-etude-2710\/","title":{"rendered":"Universidad de Barcelona: el concentrado de tomate diario se asocia a mejor atenci\u00f3n y memoria"},"content":{"rendered":"<p>Comer a diario una peque\u00f1a raci\u00f3n de concentrado de tomate durante tres meses se relacion\u00f3 con mejores resultados en pruebas de atenci\u00f3n selectiva y de memoria de caras y nombres en adultos sanos de mediana edad. Un ensayo cl\u00ednico de investigadores de la Universidad de Barcelona, publicado en la revista cient\u00edfica Antioxidants, recoge estos hallazgos.<\/p>\n<p>Los beneficios observados son modestos. En un subgrupo sometido a resonancia magn\u00e9tica se detectaron adem\u00e1s cambios en la comunicaci\u00f3n entre ciertas redes cerebrales, y el factor neurotr\u00f3fico derivado del cerebro (BDNF), una prote\u00edna ligada al crecimiento de las neuronas, mostr\u00f3 un aumento que los autores sit\u00faan en el l\u00edmite de la significaci\u00f3n.<\/p>\n<h2>Adultos de 40 a 55 a\u00f1os<\/h2>\n<p>El equipo, en el que figuran Ricardo L\u00f3pez-Sol\u00eds, Marina Corrado y Rosa M. Lamuela-Ravent\u00f3s, busc\u00f3 aislar el efecto del tomate por s\u00ed solo. Ensayos anteriores combinaban extractos de tomate o licopeno con vitaminas, hierbas o bayas y se centraban sobre todo en personas mayores, lo que imped\u00eda saber qu\u00e9 ingrediente explicaba los resultados.<\/p>\n<p>Participaron 47 adultos sanos y no fumadores del \u00e1rea de Barcelona, sin enfermedades cr\u00f3nicas ni deterioro cognitivo, de los que 42 completaron el estudio. Su edad media rondaba los 47 a\u00f1os, dos tercios eran mujeres y casi el 93 % ten\u00eda estudios superiores o de posgrado.<\/p>\n<p>El dise\u00f1o fue cruzado: cada participante pas\u00f3 por dos fases de tres meses, una con tomate y otra de control, separadas por un mes de pausa, de modo que cada persona sirvi\u00f3 de comparaci\u00f3n consigo misma.<\/p>\n<h2>Unos 35 gramos al d\u00eda<\/h2>\n<p>En la fase activa, los voluntarios comieron cada d\u00eda, crudo o cocinado, un concentrado comercial elaborado solo con tomate y sal. La dosis se ajust\u00f3 al peso, a raz\u00f3n de 0,5 gramos por kilo, lo que equivali\u00f3 de media a unos 35 gramos, aproximadamente dos cucharadas, con 38,4 miligramos de licopeno.<\/p>\n<p>En la fase de control siguieron una dieta pobre en licopeno, sin tomate, sand\u00eda, papaya, pomelo rosa, guayaba ni productos derivados. Un recetario con platos equivalentes, con y sin tomate, ayud\u00f3 a mantener estable el resto de la alimentaci\u00f3n. La dieta, el sue\u00f1o, la composici\u00f3n corporal y la actividad f\u00edsica se vigilaron con cuestionarios y pulseras de actividad.<\/p>\n<h2>Tres pruebas cognitivas<\/h2>\n<p>Al inicio y al final de cada periodo se tomaron muestras de sangre en ayunas y se aplicaron tres test: uno de tachado de letras bajo presi\u00f3n de tiempo, para medir la atenci\u00f3n selectiva y la velocidad de procesamiento visual; otro con 12 parejas de caras y nombres que deb\u00edan recordarse 15 minutos despu\u00e9s; y un juego de clasificaci\u00f3n de cartas para evaluar la flexibilidad mental. Catorce participantes se sometieron tambi\u00e9n a una resonancia funcional en reposo.<\/p>\n<p>Los an\u00e1lisis confirmaron que, de media, el licopeno en sangre respondi\u00f3 a cada dieta, sin cambios en las calor\u00edas, el sue\u00f1o ni el ejercicio. En la fase de control se mantuvo en 0,40 micromoles por litro, mientras que con el concentrado super\u00f3 el doble de su nivel inicial de 0,32. Seg\u00fan el umbral fijado por los investigadores, 14 de los 42 participantes no siguieron del todo la dieta en al menos una de las fases.<\/p>\n<p>El licopeno, el pigmento rojo del tomate y principal componente de este alimento clave en la dieta mediterr\u00e1nea, es un carotenoide capaz de atravesar la barrera hematoencef\u00e1lica. Los autores consideran que el consumo de este alimento podr\u00eda contribuir a sostener el rendimiento cognitivo en la mediana edad, antes de que el deterioro cognitivo asociado a la edad empiece a notarse.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un ensayo de la Universidad de Barcelona asocia el concentrado de tomate diario con mejor atenci\u00f3n y memoria en adultos sanos de 40 a 55 a\u00f1os.<\/p>\n","protected":false},"author":5,"featured_media":8221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[6038,6039,6040,6041],"class_list":["post-8222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health","tag-university-barcelona","tag-rosa-lamuela-raventos","tag-ricardo-lopez-solis","tag-antioxidants-journal"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"Un ensayo de la Universidad de Barcelona asocia el concentrado de tomate diario con mejor atenci\u00f3n y memoria en adultos sanos de 40 a 55 a\u00f1os.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Karim Dakir\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/zawaya24.com\/es\/concentre-tomate-memoire-attention-etude-2710\/\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"es_ES\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Zawaya24 - La actualidad desde todos los \u00e1ngulos\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Concentrado de tomate: leve mejora de atenci\u00f3n y memoria\" \/>\n\t\t<meta property=\"og:description\" content=\"Un ensayo de la Universidad de Barcelona asocia el concentrado de tomate diario con mejor atenci\u00f3n y memoria en adultos sanos de 40 a 55 a\u00f1os.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/zawaya24.com\/es\/concentre-tomate-memoire-attention-etude-2710\/\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/zawaya24.com\/wp-content\/uploads\/2026\/10\/concentre-tomate-memoire-attention-etude-2710.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/zawaya24.com\/wp-content\/uploads\/2026\/10\/concentre-tomate-memoire-attention-etude-2710.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t\t<meta property=\"article:tag\" content=\"a:0:{}\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-10-27T21:04:03+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-10-27T21:04:07+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Concentrado de tomate: leve mejora de atenci\u00f3n y memoria\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Un ensayo de la Universidad de Barcelona asocia el concentrado de tomate diario con mejor atenci\u00f3n y memoria en adultos sanos de 40 a 55 a\u00f1os.\" \/>\n\t\t<meta name=\"twitter:image\" content=\"https:\/\/zawaya24.com\/wp-content\/uploads\/2026\/10\/concentre-tomate-memoire-attention-etude-2710.jpg\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BlogPosting\",\"@id\":\"https:\\\/\\\/zawaya24.com\\\/es\\\/concentre-tomate-memoire-attention-etude-2710\\\/#blogposting\",\"name\":\"Concentrado de tomate: leve mejora de atenci\\u00f3n y memoria\",\"headline\":\"Universidad de Barcelona: el concentrado de tomate diario se asocia a mejor atenci\\u00f3n y memoria\",\"author\":{\"@id\":\"https:\\\/\\\/zawaya24.com\\\/es\\\/author\\\/karimdakir\\\/#author\"},\"publisher\":{\"@id\":\"https:\\\/\\\/zawaya24.com\\\/es\\\/#organization\"},\"image\":{\"@type\":\"ImageObject\",\"url\":\"https:\\\/\\\/zawaya24.com\\\/wp-content\\\/uploads\\\/2026\\\/10\\\/concentre-tomate-memoire-attention-etude-2710.jpg\",\"width\":1600,\"height\":900,\"caption\":\"[:ar]\\u0635\\u0648\\u0631\\u0629 \\u062a\\u0639\\u0628\\u064a\\u0631\\u064a\\u0629[:fr]Image d'illustration[:en]Illustrative image[:es]Imagen ilustrativa[:zh]\\u793a\\u610f\\u56fe[:]\"},\"datePublished\":\"2026-10-27T21:04:03+00:00\",\"dateModified\":\"2026-10-27T21:04:07+00:00\",\"inLanguage\":\"es-ES\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/zawaya24.com\\\/es\\\/concentre-tomate-memoire-attention-etude-2710\\\/#webpage\"},\"isPartOf\":{\"@id\":\"https:\\\/\\\/zawaya24.com\\\/es\\\/concentre-tomate-memoire-attention-etude-2710\\\/#webpage\"},\"articleSection\":\"Salud, Universidad de Barcelona, Rosa M. 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