Chlorella Capsules by Lidtke is a single-celled micro-algae known as one of the most complete food sources on the planet for its abundance of vitamins and minerals, protein, omega-3 fatty acids, and phytonutrients. Chlorella is grown in pristine vessels in a pure environment that protects the growing chlorella from industrial pollution. Nearly all chlorella products, even the most popular, are grown outdoors in ponds exposed to contaminants. Outdoor seasonal and daily temperature fluctuations result in a tough, outer shell that must be mechanically cracked or broken. Because of the pure, controlled, safe environment where Lidtke Chlorella is grown, it has a soft outer membrane that is 80% - 90% easily digestible. There is no need for cracking, and the nutrient content is consistent throughout the year.