Appendix

Vitamin Conversion

Vitamin A

Total vitamin A (RE) = µg retinol + (µg ß-carotene ÷ 6) + (µg other carotenoids ÷ 12)
Total vitamin A (RAE) = µg retinol + (µg ß-carotene ÷ 12) + (µg other carotenoids ÷ 24)
UI retinol ÷ 3,33 = RE
UI ß-carotene ÷ 10 = RE
   
Vitamin D 1 µg vitamin D = 40 UI vitamin D
   
Vitamin E 1 UI vitamin E = 0,67 mg vitamin E
   
Niacin Total niacin (NE) = mg niacin + (mg tryptophan ÷ 60)
(estimation) 1,1% tryptophan = 0,2 NE/g protein
   
Energy 1 Calorie = 1 kilocalorie = 4,184 kJ