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If you are over age 50, you should aim to eat around 3-5 micrograms per day, while pregnant or breastfeeding women should consume 2-3 micrograms a day
Zhang R, Zhang L, Li Z, Zhang P, Song H, Yao DA, Cao J, Zhang JJ (2022) Green tea improves cognitive function through reducing AD-pathology and improving anti-oxidative stress capacity in Chinese middle-aged and elderly people
B12 shots are generally safe and well-tolerated
These were men who never knew the doctor, had sharp minds even in old age, their hands still firmly held the fishing nets and they lived functional longevity, often working into their 90s
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