It’s allowed in the US and the National Academy of Sciences says “the use of these materials in the production of crops for human consumption when practiced in accordance with existing federal guidelines and regulations, presents negligible risk to the consumer, to crop production and to the environment.”
There is a much higher likelihood of spreading disease when you fertalize with human waste. Most countries do not allow it for that reason.
It’s allowed in the US and the National Academy of Sciences says “the use of these materials in the production of crops for human consumption when practiced in accordance with existing federal guidelines and regulations, presents negligible risk to the consumer, to crop production and to the environment.”
While that is true, most disease outbreaks in developed countries occur from improper handling and packaging.
People have been using Nightsoil for a long time.