The environmental footprints of certain foodstuffs, calculated per unit of protein produced, risk misinforming food stakeholders and consumers, according to a new study.
Instead, the full nutritional value of foodstuffs needs to be fully considered when scientists are trying to calculate the environmental impact of producing different foods, say the authors.
The study took a measure of protein quality called the Digestible Indispensable Amino Acid Score and used it to create ‘adjusted’ environmental footprint metrics for a variety of foods. Using this method, many animal-based…
