Question: Which nutrients do we need every single day?
I would say that the top ones to be concerned about from a have-to-get-it-today perspective would be zinc and B12. And both of those have absorption caps that are fairly tight, but B12 is the number one concern.
You want to pay decent attention to the zinc rule, and you do want to make sure that your B vitamins are getting in on most of those other B vitamins you could probably, as long as you're hitting the daily average on the weekly basis, that's good.
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DISCLAIMER: I have a PhD in Nutritional Sciences and my expertise is in performing and evaluating nutritional research. I am not a medical doctor and nothing herein is medical advice.