Our lecithin is pressed from dried sunflower, and is organic and non-GMO (which is in contrast to most supplements that use the often genetically-modified soy lecithin). This emulsifier helps to hold our Vitamin D tablets together. And, because it contains essential fatty acids, our lecithin has the added benefit of supporting the absorption of Vitamin D, which is a lipophilic vitamin that mixes and dissolves best with fats rather than water.