Yes The instant coffee endorsed by Lu Yi is black coffee with good memory, which has low calorie, promotes fat metabolism, improves blood lipid viscosity and accelerates fat decomposition. Therefore, the instant black coffee endorsed by Lu Yi will have the effect of losing weight. Therefore, the instant black coffee endorsed by Lu Yi is effective. Black coffee is coffee without any modification. Black coffee brings the original feeling of tasting coffee, which combines the sweet, sweet and bitter characteristics of coffee.