NPN, what about b4 NPN's?

Hi Moreless,

I am seeing the trend that NPN's are the main problems with keeping the acid/alkaline balance in order to have health.

However, if NPN's didn't exist 200 or even thousands of years ago, why didn't people live much longer healthier lives?

I read that these NPN's came about due to the coal burning years where scientists found high concentrations of this inorganic nitrogen in lakes and streams. This is why the farmers started using it, supposedly. However, more recently, a study was conducted in south america where they found more of the organic nitrogen and concluded that there was a mistake in the first studies due to the excess inorganic nitrogen from coal burning.

http://www.perfect-blend.com/personal_gardening.html

Thanks,

Paraboy