1000 µg = 1 mg = 0.001 g

egg yolk 100 g**
protein 16 g
protein quality 44 %
fat 32 g
LNA (omega 3) 220 mg
DPA (omega 3) 60 mg
DHA (omega 3) 180 mg
carbs 0.3 g
good cholesterol 1.3 g
vitamin E activity 6 mg
vitamin A 886 µg
vitamin D 6 µg
vitamin B1 290 µg
vitamin B2 400 µg
vitamin B3 65 µg
vitamin B5 4 mg
vitamin B6 300 µg
biotin 53 µg
folic acid 160 µg
vitamin B12 2 µg
vitamin K 147 µg
calcium 140 mg
magnesium 16 mg
phosphorus 590 mg
potassium 138 mg
sodium 51 mg
chloride 180 mg
iron 7 mg
zinc 4 mg
manganese 125 µg
copper 350 µg
nickel 14 µg
chromium 20 µg
vanadium 68 µg
molybdenum 17 µg
fluoride 30 µg
iodide 12 µg
boron 66 µg
cobalt 35 µg
selenium 19 µg

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