Table 3.

Proposal of an oral supplementation scheme for vitamin B12 deficiency in pregnant and lactating women, infants, and children.

	Serum B12 < 75 pmol/L	Serum B12 between 75 and 150 pmol/L	Serum B12 between 150 and 220 pmol/L	Serum B12 between 220 and 300 pmol/L
Pregnant and lactating women	1000 μg/day for 4 months	1000 μg/day for 3 months	1000 μg/day for 2 months	1000 μg/day for 1 month
Children aged 6 months to 3 years	a daily single dose of 250 μg or 3 daily doses of 10 μg for 4 months	a daily single dose of 250 μg or 3 daily doses of 10 μg for 3 months	a daily single dose of 250 μg or 3 daily doses of 10 μg for 2 months	a daily single dose of 250 μg or 3 daily doses of 10 μg for 1 month
Children aged 4 to 6 years	500 μg 4 times/week for 4 months	500 μg 4 times/week for 3 months	500 μg 4 times/week for 2 months	500 μg 4 times/week for 1 month
Children aged 7 to 10 years	500 μg 6 times/week for 4 months	500 μg 6 times/week for 3 months	500 μg 6 times/week for 2 months	500 μg 6 times/week for 1 month
11 years and above	1000 μg/day for 4 months	1000 μg/day for 3 months	1000 μg/day for 2 months	1000 μg/day for 1 month