You can't. This soft capsule provides a healthy fat source, namely omega-3 fatty acids, which is beneficial to weight control and healthy lifestyle. Studies have shown that supplementing omega-3 fatty acids can promote metabolism, reduce inflammation and help to lose weight. However, to achieve the effect of losing weight, we need the joint efforts of diet and exercise. Therefore, omega-3 fatty acid ethyl ester 90 soft capsule is beneficial to lose weight, but it cannot directly lead to weight loss.