The NOAEL is the lowest "dose" or exposure level to a non-cancer-causing chemical at which no increase in adverse effects is seen in test animals compared with animals in a control group. First, a NOAEL is determined. For instance, it is...

Acceptable Daily Intake or ADI is a measure of the amount of a specific substance (usually a food additive, or a residue of a veterinary drug or pesticide) in food or drinking water that can be ingested (orally) over a lifetime without an appreciable...