purchase and eat less total food because your body's hidden hunger for missing vitamins and minerals will lessen as you obtain HIGHER QUALITY food... Finally, you more than likely will free yourself from purchasing bottles upon bottles of vitamins and other food supplements because you will be getting more generous amounts of higher quality vitamins and essential body elements exactly as your body is designed to get them: from your food... While the above procedures work well for many, increasing numbers of large-scale growers are paying close attention to the full range of in-field tissue tests being highlighted by companies such as Pike Agri-Lab in the US and Australia?s Nutri-Tech . These methods, which employ not only the refractometer, but also pH and conductivity tests (of soil and plant), are gaining a worldwide reputation for putting profitability back into farming. High quality food production is no longer a hit or miss situation.  Perhaps of even greater interest, the brix/pH/conductivity parameters are making it possible for large-scale growers to farm at vastly decreased toxicity levels because they are growing crops that are far healthier. Many consumers are quick to condemn farmers for using so many toxic sprays. Few stop to think about how unhappy the farmer is that no one has shown him ways to grow abundant crops, poison free. After all, in most cases the farmer is the one getting the brunt of those toxins.