Under elevated CO2 most plant species show higher rates of photosynthesis, increased growth, decreased water use and lowered tissue concentrations of nitrogen and protein. (judithcurry.com)
Then larger fish eat the small fish, increasing tissue concentrations still more. (discovermagazine.com)
So now, for the first time ever, not only do we know that the broccoli we eat ends up in the right place, but we know the final tissue concentration. (nutritionfacts.org)