1000 µg = 1 mg = 0.001 g

mangostan 250 g**
protein 2 g
fat 1 g
carbs 40 g
vitamin B1 1.3 mg
vitamin B2 38 µg
vit. B3 minimum 100 µg
vit. B3 maximum 1.5 mg
vitamin C 7 mg
calcium 38 mg
iron 1 mg
sodium 3 mg
phosphorus 28 µg

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