It's also, the actual air. There's more CO2 in the air these days. this super charges the growth of plants: vegetables and cereal crops. But, the amount of m

It's also, the actual air. There's more CO2 in the air these days. this super charges the growth of plants: vegetables and cereal crops. But, the amount of minerals in the plant remains the same but the plants grow larger with more sugar content. and so the amount nutrients per calories drops. this has been proven and documented.