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Is the copper from plant foods the same as from animal foods?

Commented on May 23, 2013
Created May 23, 2013 at 2:21 PM

I eat about a quarter pound of beef liver per week, divided into about four 1-ounce servings, and spread out over four days. I and make sure to get enough zinc through muscle meat (about 1 lb. per day) and sometimes oysters. I've noticed that my few pounds of daily tubers (mostly potatoes) contains significant amounts of copper. I want to make sure that I'm not taking in too much copper, but my daily averages are over 4 mg. Is the copper from tubers the same form and does it have similar absorption as the copper from liver? Does anyone else notice excessive copper intake from the combination of liver and tubers? I get a pretty good copper:zinc ratio from my animal foods, but when tubers are considered, my copper seems high.

Cb9a270955e2c277a02c4a4b5dad10b5

(10989)

on May 23, 2013
at 04:29 PM

Any evidence most people might be deficient in Cu?

32f5749fa6cf7adbeb0b0b031ba82b46

(41757)

on May 23, 2013
at 02:27 PM

Excess copper is quite hard to do, most folks probably are deficient in it. Lots of soil is deficient, so plants and animals grown in/on that soil are going to be deficient as well.

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