Euglena gracilis is a unique microalga that possesses both animal and plant characteristics. Its core value lies in polysaccharide—a rare type of β-1,3-glucan with a unique hollow fibrous structure. Acting like a sponge, it can efficiently adsorb and remove fats and harmful substances from the intestines, regulate blood lipids, and support weight management, thus being renowned as the “Scavenger of the Gut”. Additionally, Euglena lacks a rigid cell wall, making it easily digestible and absorbable by the human body. These traits endow it with boundless prospects in the innovative health product market focused on regulating hypertension, hyperlipidemia, and hyperglycemia (three highs), controlling weight, and promoting intestinal health.