acceptable daily intake (ADI)

Maximum amount of a substance (such as a food-additive or pesticide residue) to which an individual can be exposed to (through contact or intake), on a daily basis over his or her life span (estimated at 70 years), without causing any harmful effects. ADI is measured usually in milligrams of the substance, per kilogram of body weight of the exposed person, per day (mg/kg/day). See also reference dose.