Fecal Excretion and Apparent Absorption of Ultratrace Elements

Fecal Excretion and Apparent Absorption of Ultratrace Elements 

The majority of ultratrace elements are metals, and their fecal excretion rate is greater than 50% (Table 4.19). Fecal excretion of lead by people with a mixed diet is astonishingly low (50%), while the apparent absorption rate is very high (40% on average). The daily lead intake of test popula- 

The phytin-rich nutrition of ovolactovegetar-ians lowers the availability of strontium and increases fecal excretion of this alkali metal. The apparent absorption rate of strontium in vegetarians, like that of calcium, is significantly lower than in people with a mixed diet. 

The fecal excretion rates of the ultratrace elements strontium, titanium, uranium and chromium were 90-99%, and the appa- 

Element (n nj Mixed Vegf Mixed Veg. Mixed Veg. Mixed Veg. 

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