GoodGuide's Health ratings for food products are based on four attributes:
The nutritional value of the food, as characterized by a standard method of nutrient assessment called the “Ratio of Recommended to Restricted Nutrients” (RRR),
Indicators of whether levels of specific nutrients exceed public health guidelines,
The presence of potentially hazardous food additives, and
Indicators of various production practices that affect the quality of a food product.
Product-level data on environmental performance are generally unavailable for specific food products, so GoodGuide relies on company-level environmental scores to characterize the performance of a product on this dimension. For some types of fresh produce and meat, GoodGuide provides information on the environmental impacts of that category based on life cycle assessment, but the data do not support product-level scoring.
Product-level data on societal performance are generally unavailable for specific food products, so GoodGuide relies on company-level social scores to characterize the performance of a product on this dimension.