Calcium
≤7.5 mmol/24h (<300 mg daily)
Copper
0.2–1.0 μmol/24h (15-40 mg/24h)
Creatinine
0.13–0.22 mmol/kg/24h
5-hydroxyindole acetic acid (5HIAA)
<47 μmol/24h
amounts lower in females than males
Protein (quantitative)
<0.15 g/24h
Sodium
60–180 mmol/24h