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Vitamin absorption

How long do vitamins and minerals absorb from food stay with you? How soon do you need to eat that food again to not loose the vitamins from your system? I see a lot, to have a diet of wide range of fruit veg fat protein carb….. but definitely can’t eat all that in one day. I personally go to shop and get food for a few day and eat basically the same meals till that stuff runs out and need to go back to the shop.

Answer

Hi, it varies for vitamins, some are stored efficiently and some are not. You would want to hit your vitamin needs averaged out over week or so, no need to hit them every day. See Diatary Reference Intakes (US).

Minerals are excreeded mostly in your urine on a daily basis. You just wanna hit your needs on average over a couple days as well. Depending on where you live you will not have a hard time to hit most of them tho if you are healthy. They are present in most foods except for iodine (mostly seafood/fish iodized salt), iron (red meat), calcium (dairy products) and fluorine (water fluoridarion and toothpaste, not that you are supposed to eat it (don’t do it)).

How long your individual micronutrient stores hold is not a trivial question and i’m only in my 3rd of 8 semesters.

Best advice is to eat a rich and varied diet with lots of fruits and vegetables and you’ll be fine. Look at your countires recommendations and do what works for you.

Hope this helps a bit.