55heme; on day 2, 59heme plus 150 g chicken (0.81 mg
total Fe/100 g); on day 14 55heme plus 150 g of fish (1.06 mg total
Fe/100 g); and day 15 59heme plus 150 g of beef (1,39 mg total
Fe/100 g). The meat was steamed at 100 C for 15 min without
other foods or additive, except salt (0.3 g). The iron content of
meals were determined by spectrometry atomic absorption, previous
digestion of the sample by using nitric, perchloric, and sulfuric
acids.