La restricción dietaria de calcio produce alteraciones metabólicas
DOI:
https://doi.org/10.31053/1853.0605.v66.n2.23532Palavras-chave:
dietas deficientes en calcio, metabolismo hormonal, cáncer, huesoResumo
El calcio (Ca2+) es fundamental para la formación de los huesos y dientes y es esencial para alcanzar el pico de masa ósea. Además, el Ca2+ es un importante regulador de diferentes procesos fisiológicos. Los requerimientos diarios de Ca2+ dependen de la edad, sexo y diferentes estados fisiológicos, siendo mayores en los adolescentes, en el embarazo y en la lactancia. Con dietas deficientes en Ca2+, la secreción de distintas hormonas calciotrópicas se modifica y el transporte duodenal y la reabsorción renal del catión se incrementan, por lo que el metabolismo óseo también está fuertemente alterado. Hay también evidencias de que existe asociación entre la baja ingesta de Ca2+ y la hipertensión arterial e incremento en el riesgo de contraer cáncer.
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