Chlorella are green, single-cell microalgae. They are highly nutritious, and a rich source of chlorophyll. Source Naturals’ Chlorella contains 60% protein; it is a complete vegetarian protein, containing all eight essential amino acids. Source Naturals’ Chlorella is carefully harvested and dried at low temperature. The cell walls are broken, allowing concentrated nutrition within each chlorella cell. Chemical analysis revealed that the lipid fraction contained large quantities of antioxidants, including carotenoids (especially lutein) and others, and phospholipids involved in aorta collagen and elastin metabolism; the residual fraction contained high concentrations of arginine, enhancing the function of blood vessels. Daily dietary supplementation with chlorella may help maintain healthy blood pressure and cholesterol levels already within normal range, sustain healthy vascular function, accelerate wound healing, and enhance immune functions.