The European recommended daily intake also varies by age, beginning at 1.5 g for infants and increasing to 4 g for adults, with slightly higher requirements during pregnancy and lactation (4.5 g and 5 g, respectively
Vitamin B12 is found exclusively in animal foods or foods fortified with this vitamin, such as: Meat and chicken: especially organ meat and red meat like beef Fish and seafood: especially clams, sardines, tuna, trout, and salmon Dairy: including milk, cheese, and yogurt Eggs: especially egg yolk Fortified foods: breakfast cereal, nutritional yeast, as well as some mock meats or plant milks Supplements, which are widely available in stores and online, are another way to meet your daily requirements
The vial will last 10 days
Sadly, the expiry was the end of April 2021, so perhaps they're too far gone now