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Este nutriente podría ser clave para envejecer más lento

La investigación contó con más de 1.000 participantes mayores de 50 años.

El consumo de suplementos con vitamina D3 podría ralentizar el proceso biológico vinculado al envejecimiento, informó la organización Mass General Brigham, citando un estudio realizado por investigadores de centros científicos de EE.UU.

La investigación se centró en el análisis de los telómeros, estructuras protectoras en los extremos de los cromosomas, que tienden a acortarse a medida que envejecemos y que también están asociadas al desarrollo de ciertas enfermedades crónicas relacionadas con la edad.

Como parte de un ensayo clínico, a más de 1.000 participantes mayores de 50 años se les istró diariamente una dosis de 2.000 UI de vitamina D3 (equivalente a 5 mililitros) y un gramo de ácidos grasos omega 3, a lo largo de 4 años.

Se midió la longitud de los telómeros en los glóbulos blancos al inicio del estudio y nuevamente en el segundo y cuarto año. Los científicos descubrieron que quienes tomaron únicamente vitamina D3 experimentaron una disminución significativa en el acortamiento de estas estructuras protectoras. Sin embargo, los ácidos grasos omega 3 no tuvieron un efecto similar.

Una reducción del envejecimiento

"El grupo que recibió vitamina D presentó el acortamiento telomérico esperado con aproximadamente un año de envejecimiento", indicó la investigadora JoAnn Manson, quien explicó que se estaba "eliminando cerca de 3 años de envejecimiento con la suplementación con vitamina D".

Al mismo tiempo, Manson señaló que el beneficio del consumo de la vitamina D está relacionado con la reducción de la inflamación, que se vincula con enfermedades autoinmunes y cáncer. Sin embargo, afirmó que este nutriente no es una panacea, ya que existen ciertas enfermedades crónicas que no parecen reducirse con su ingesta. También aclaró que los suplementos están destinados a complementar, no reemplazar, una dieta saludable y opciones de estilo de vida que beneficien a la salud.

"Si bien es mucho más fácil tomar una pastilla que estar físicamente activo al aire libre y comer de manera saludable, estos factores de estilo de vida contribuirán más a mantenerlo saludable y reducir el riesgo" de afecciones crónicas asociadas con el envejecimiento, añadió. Los resultados del estudio fueron publicados en The American Journal of Clinical Nutrition.

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