Our diatomaceous earth has been specifically sourced from a fresh water source and is 100% pure codex food grade as well as being one of the finest milled grades available anywhere on the planet. One of the most sought after benefits of diatomaceous earth is to cleanse the digestive tract. Many people consume a variety of processed foods, which contain various harmful chemicals and toxins. Removing these impurities can enhance digestion and nutrient uptake leading to a higher feeling of wellbeing.