People over 50 years old
The elderly are susceptible to vitamin B12 deficiency due to poor absorption and poor nutrition.
Therefore, up to 62% of elderly people have lower blood vitamin B12 levels than normal, they need to supplement from functional foods or take it directly.
Pregnant women
Pregnant women also need to meet the need for vitamin B12 more than usual to ensure the health of the body as well as the best nutrition for the fetus.
The recommended supplementary dosage for this group of subjects is 2.6 micrograms/day, if the daily diet does not meet the requirements, additional supplements are needed.
Breastfeeding women
Vitamin B12 absorbed by the mother's body is partially transferred into breast milk to provide for the baby.
This group is recommended to provide 2.8 micrograms of vitamin B12 per day.
Vegetarians
Vegetarians are often deficient in vitamin B12 due to not using nutritious foods.
Therefore, the recommended vitamin B12 intake for this group of people is 2.4 micrograms per day, in addition to diet, it should be supplemented directly or through supplements.
People with malnutrition
These subjects need to supplement 1mg of vitamin B12 per day, maintained continuously for the first month.
Then in the following months, just maintain a dose of 125 - 250 micrograms of vitamin B12.