How many mg of nicotine are absorbed in 4 mg of nicotine gum?

The amount of nicotine absorbed from 4 mg of nicotine gum can vary based on several factors, including individual metabolism and how the gum is used. Generally, about 50% to 75% of the nicotine in the gum is absorbed, so a person might absorb approximately 2 to 3 mg of nicotine from a 4 mg piece of gum. However, this can differ from person to person.