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Notably, recent research suggests this relationship is bi-directional: aging causes circadian/sleep disruption, and conversely, circadian disruption can accelerate aspects of aging ( Given these insights, there is intense interest in identifying interventions that can stabilize or strengthen circadian rhythms in older people
Image source Adequate stomach acid and enzymes are required to free B12 from the proteins it is bound to in food
The recommended dietary allowance for Vitamin B12 in people over the age of 14 is 2.4 micrograms (mcg)
That said, researchers have estimated typical dietary intake
Biotechnol Adv 63:108092
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