Select your age group
19-30 years
6-11 months
12-23 months
2-3 years
4-8 years
9-13 years
14-18 years
✓
19-30 years
31-50 years
51-64 years
65 + years
Select your sex
Female
✓
Female
Male
Currently, you are...
Not pregnant or breastfeeding
Pregnant, 1st trimester
Pregnant, 2nd trimester
Pregnant, 3rd trimester
Breastfeeding, 0-6 months
Breastfeeding, 7-12 months
Intake Source and Frequency
Fortified food twice a day
Supplement once a day
Supplement twice a week
Supplement once a week
General DV
Your RDA
By Source & Frequency*
Your UL
Not established because vitamin B12 is water-soluble and any excess gets excreted through urine.