Chlorophyll is a green pigment found in plants and algae, responsible for their green color. It is commonly used as a natural colorant in food and beverages, including protein powders. Chlorophyll is also marketed as a health supplement due to its potential health benefits, such as promoting wound healing, reducing inflammation, and promoting healthy digestion.
In terms of safety, chlorophyll is generally considered safe for consumption, but high doses may cause gastrointestinal upset or discoloration of feces and urine.