Acronyms

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NPS

Nutrient Profiling Systems are designed and applied to quantify the nutritional quality of one food compared to others.
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NTP

The National Toxicology Program is a Federal agency that coordinates toxicology research and testing activities within the US Department of Health and Human Services; provides information about potentially toxic chemicals to regulatory and research agencies and the public; and strengthens the science base in toxicology.
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PDP

Pesticide Data Program, administered by USDA’s Agricultural Marketing service. Approximately 20,000 samples of food and beverages tests annually.
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TOC

The Organic Center, a non-profit organization dedicated to conducting science on the environmental and health effects of organic food and farming and communicate the findings to the public.
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RDA

Recommended Daily Allowance, the scientifically-established recommended consumption of essential nutrients.
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PPM

Parts Per Million is a unit of concentration often used when measuring levels of pollutants in air, water, body fluids, etc. One ppm is 1 part in 1,000,000. The common unit, µg/liter, is equal to ppm.
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PPB

Parts Per Billion is 1 part in 1,000,000,000. The difference between 1 ppm and 1 ppb is important-it is like the difference between $1 and $1000.