of vitamin. i'm here with professor. at the german institute for human nutrition thanks for inviting me today they are recommended daily amounts for most vitamins they are and so how are they determined 1st to determine the average requirements of a person and then you add a margin of safety in order to ascertain that last healthy people with an undefined population group meet their requirements so the recommended daily intake allowance is actually higher than the average requirement that the dosage varies if we take a look at the world health organization and they say for vitamin c. it's only $45.00 milligrams and if you take a look to the u.s. the american institute of medicine or comments 90 milligrams of fighting in the german society from christian says $110.00 milligrams is sufficient so what's the correct dosage they can vary from country to country it depends a bit on which evidence you look out which function of the new trend to look out which method used to derive the average requirements. how much safety margin you add but in germany for example they do coincide with the european union's requirements and what exactl

christina norman is a professor at the german institute of human nutrition in pottstown she knows all about the nutrients people need to stay healthy. they go.