Table 5.
Recommended Dietary Allowance (RDA in bold) and Adequate Intake (AI in italics) of minerals for the Italian adult population, and the mineral intake provided by 100 g FW of A. portulacoides.
| Age (Years) | Ca (g) | P (g) | Mg (mg) | Na (g) | K (g) | Cl (g) | Fe (mg) | Zn (mg) | Cu (mg) | Se (μg) | I (mg) | Mn (mg) | Mo (μg) | Cr (μg) | F (mg) | |
| Males | 30–59 | 1 | 0.7 | 0.24 | 1.5 | 3.9 | 2.3 | 10 | 12 | 0.9 | 55 | 0.15 | 2.7 | 65 | 35 | 3.5 |
| Females | 30–59 | 1 | 0.7 | 0.24 | 1.5 | 3.9 | 2.3 | 18/10 | 9 | 0.9 | 55 | 0.15 | 2.3 | 65 | 25 | 3.0 |
| FW (g) | Ca (g) | P (g) | Mg (mg) | Na (g) | K (g) | Cl (g) | Fe (mg) | Zn (mg) | Cu (mg) | Se (μg) | I (mg) | Mn (mg) | Mo (μg) | Cr (μg) | F (mg) | |
| A. portulac. | 100 | 0.1 | 0.016 | 0.11 | 0.47 | 0.5 | 0.33 | 5.7 | 1.0 | 0.17 | - | - | 0.13 | - | - | - |
Values on a daily basis (from http://www.sinu.it, modified). With regard to Fe, in females aged 39–59, the second RDA value refers to postmenopausal women. The assumption of the minerals provided by 100 g FW of A. portulacoides were estimated from the averages of the intervals shown in Table 4, assuming a dry weight equal to 12.5% of the fresh biomass: contributions that are ≥ 40% RDA are highlighted in dark grey; those that are ≥ 10% are highlighted in light grey.