1000 µg = 1 mg = 0.001 g

edible boletus 50 g**
protein 2 g
protein quality 88 %
fat 0 g
carbs 0 g
vitamin D 2 µg
vitamin B1 17 µg
vitamin B2 185 µg
vitamin B3 3 mg
vitamin B5 1 mg
calcium 2 mg
magnesium 6 mg
iron 500 µg
zinc 350 µg
sodium 3 mg
potassium 170 mg
phosphorus 42 mg
manganese 85 µg
copper 115 µg
nickel 5 µg
boron 33 µg
chromium 10 µg
cobalt 17 µg
fluoride 32 µg
silicon 2 µg
selenium 9 µg


** Souci, Fachmann, Kraut;
Food Composition And Nutrition Tables
Medpharm Scientific Publishers Stuttgart