Lecithin naturally occurs in the tissues of the body and is also created synthetically. It consists of fatty acids and has commercial and medicinal uses — acting as an emulsifier — to keep fats and oils from mixing with other substances. Lecithin supplements are widely available and may help treat various medical conditions with minimal reported side effects.
Lecithin supplements come from sunflower seeds, soybeans, or eggs, though soy is the most popular. Soybean lecithin mostly comes in granulated capsules, while sunflower lecithin is available in powder and liquid formulations. For people avoiding genetically modified organisms, sunflower lecithin is the better choice because of the soybean modification process.
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