Provisional maximum tolerable daily intake PMTDI

For contaminants and naturally occurring toxicants, levels corresponding to tolerable intakes such as the provisional maximum tolerable daily intake (PMTDI) or provisional tolerable weekly intake (PTWI) are established when there is an identifiable no-observed-effect level, that is, a threshold of effect can be assumed based on available data. When a noobserved-effect level cannot be identified, the Committee provides other advice, such as identification of the food(s) that contributes most to intake. This allows for targeted management actions in order to decrease exposure. 

MTDI = maximum tolerable daily intake, or provisional maximum tolerable daily intake (PMTDI) a term used for description of the end point of contaminants with no cumulative properties. Its value represents permissible human exposure as a result of the natural occurrence of the substance in food or drinking water. In the case of trace elements that are both essential nutrients and unavoidable constituents of food, a range is expressed, the lower value representing the level of essentiality and the upper value the PMTDI. 

PMTDI (Provisional Maximum Tolerable Daily Intake) A provisional estimate of the amount of a hazardous substance with no cumulative properties in food or drinking water, expressed on a body-weight basis, that can be ingested daily over a lifetime without appreciable health risk. 

PTWI, Provisionably tolerable weekly intake PMTDI, Provisionably maximum tolerable daily intake PDDR, Provisionably daily dietary requirement. 

PMTDI Provisional Maximum Tolerable Daily Intake... 

PMTDI provisional maximum tolerable daily intake... 

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