Soy protein powder, like other protein powders, can be a useful supplement for weight loss as part of a calorie-controlled diet. Soy protein has been shown to help reduce body weight and body fat, and improve satiety, compared to other proteins or carbohydrate sources. It can help to build muscle and reduce muscle loss, which can be important for weight loss. Soy protein also has been shown to help prevent cardiovascular disease as well as lowering bad cholesterol and triglyceride concentrations without affecting good HDL cholesterol.
However, it is important to note that soy protein powder alone will not cause weight loss, but it can be a helpful tool when combined with a healthy diet and regular physical activity. Additionally, not all studies on soy protein and weight loss have produced consistent results, and more research is needed to fully understand its potential benefits.