| Vitamina K
La vitamina que protege nuestros huesos La vitamina K2 tiene un importante papel en la salud ósea y en la salud cardiovascular. La vitamina K es una vitamina esencial soluble en grasa que debe aportarse a nuestra dieta a través de los alimentos. Nuestro cuerpo tiene un pequeño almacén de vitamina K muy limitado, por lo que no debemos olvidarnos de ingerirla suficientemente.
Existen dos formas de vitamina K de interés para nuestra salud. La vitamina K1, implicada en la coagulación sanguínea, y la K2, con un importante papel en el metabolismo óseo y en la prevención de la mineralización de los vasos sanguíneos.
Pese a que el calcio, en un inicio, y la vitamina D más tarde, se posicionaron como los nutrientes imprescindibles para una correcta salud de nuestros huesos, la vitamina K2 ha demostrado también su importante implicación a la hora de evitar la pérdida de densidad ósea y reducir el riesgo de fracturas. Existe una estrecha relación entre la vitamina K2 y el calcio, ya que la primera es esencial para que el segundo pueda ser transportado hasta el hueso. Es decir, si la vitamina D ayuda a absorber el calcio, la vitamina K2 ayuda a que el mineral llegue hasta nuestro esqueleto. Es, por tanto, una vitamina imprescindible si lo que buscas es cuidar de tu salud ósea, restablecer el déficit mineral, maximizar su aprovechamiento y minimizar el riesgo de fracturas y osteoporosis.
Por otro lado, la vitamina K2 favorece nuestros vasos sanguíneos evitando que el calcio se adhiera a las paredes de venas y arterias, algo que supone un serio riesgo cardiovascular.
Obtenemos vitamina K2 con el consumo de carnes, el hígado es especialmente rico en K2, y mediante alimentos fermentados como el natto. Para una mayor necesidad, podemos aportar K2 en forma de complemento alimenticio, sola o en combinación con vitamina D3, con la que consigue una gran sinergia.  | | 
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