Table 2.

Predicted additional content of micronutrients in fortified wheat flour at bakeries or at the household level, before being used to prepare bread and other flour-containing foods

Micronutrient	Factory additional mean content (mg/kg)	Estimated loss to homes (%)*	Estimated additional mean content in homes (mg/kg)
Vitamin A (RAE)	1·5	20	1·2
Vitamin D	0·023	20	0·018
Thiamin (B1)	2·9	30	2·0
Riboflavin (B2)	3·6	15	3·1
Niacin	35	15	30
Vitamin B6	3·6	15	3·1
Folate (as folic acid, DFE)†	2·5	15	2·1
Vitamin B12	0·004	15	0·003
Zn (from zinc oxide)	20	0	20
Fe (from ferrous sulfate)	34	0	34

RAE, retinol activity equivalents; DFE, dietary folate equivalents.

^*Values generally accepted based on experience with wheat flour and other foods^{( 13 – 19 )}.

^†The DFE shown are calculated as folic acid multiplied by 1·7 because of the higher bioavailability of this compound over natural sources of folate.