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Nutrient calculators useless
Posted by:
fresh
()
Date: August 05, 2014 02:14AM ok, they're reasonably accurate for calories and macronutrients.
But it occurs to me that for micronutrients, which is what many people use it for all the time, it is actually useless. for example, calcium available (due to varying oxalates) from spinach, chard, beet greens, rhubarb 4-8% bok choy,kale,broccoli 40-60% romaine - probably higher So taking into account the varying BODILY absorption capabilities Plus The above FOOD variation for calcium and likely most/all other micronutrients Plus the fact that amounts in nutrient databases are purely nutrient content in without taking into account to absorption efficiency, Using a nutrient calculator is not even close to being accurate. Correct me if I am wrong... Re: Nutrient calculators useless
Posted by:
Mislu
()
Date: August 05, 2014 02:23AM Fresh,
That sounds correct. I read a book on composting years ago, and it mentioned the variability of nutrients in food. The book gave even more drastic examples. Some nutrients varied by as much as 1,000 times. I don't remember which mineral or nutrient, but most likely its a trace mineral. Re: Nutrient calculators useless
Posted by:
Prana
()
Date: August 05, 2014 05:23AM Plus, the way B12 is measured, it gets destroyed if not embedded in protein. Fruits and vegetables do not have zero b12, unless they were grown in sterile dirt.  Re: Nutrient calculators useless
Posted by:
intrstelr
()
Date: August 05, 2014 02:39PM Plus no one really understands the exact amt anyone needs. I'd like to know that myself, but it's all jut opinion. N a lot of the "facts" out about nutrients are from studies on meateaters. Sorry, only registered users may post in this forum.
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