The individual needs of the vitamin (c).. The needs of smokers than double those of non-smoking individuals

20 mg for infants

20 mg for children up to the age of 12 years

30 mg for individuals 13 years of age or older

50 mg for pregnant and lactating women

Note: It was shown that smoking helps to damage this vitamin by 50%, making the needs of smokers than double those of non-smoking individuals.