blog posts Nutrient-rich human waste poised to sustain agriculture, improve economies Aug 20, 2021 1:30 pm by Lois YoksoulianResearch Share on Facebook Tweet Email Images 'Whatever comes in through food and drink must come out in our urine, feces and sweat. Knowing that, we can estimate how much (nitrogen, phosphorus and potassium) is in a population’s bodily waste if we know their diet,' says professor Jeremy Guest. Share on Facebook Tweet Email