1000 µg = 1 mg = 0.001 g

pineapple 500 g**
protein 2 g
protein quality 43 %
fat 1 g
linolenic acid 90 mg
carbs 60 g
vitamin E activity 500 µg
total carotenes 300 µg
vitamin B1 400 µg
vitamin B2 150 µg
vitamin B3 1 mg
vitamin B5 1 mg
vitamin B6 370 µg
folic acid 20 µg
vitamin C 100 mg
calcium 80 mg
magnesium 80 mg
potassium 1 g
iron 2 mg
zinc 600 µg

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