Just one teaspoonful of PINES Wheat Grass powder, dissolved in water or juice, provides the same amount of nutrition as a serving of deep-green, leafy vegetables. Pound for pound, PINES Wheat Grass is many times richer in chlorophyll and iron than spinach. Its protein level averages 25 percent and it contains virtually every vitamin known, along with 20 amino acids, including the eight that are considered essential for human health.Charles Schnabel and a team of scientist began studying wheatgrass and other cereal grass in 1931. They determined the best climate, location, soils, stages of growth and low temperature drying methods. Pines follows the 75-year growing and harvesting standards established by those scientist at Cerophyl Laboratories.Pine Wheat Grass is never grown in greenhouses or Trays and is grown in the same kind of glacial soils that produced the most nutritious wheatgrass in the research. It matures slowly, outdoor, during cold months. Freezing nighttime temperatures and cold days convert month of full sunlight into nutritional density, while the plant remains a short grass.