Here, we find out. What is it? The Slim-Fast method of losing weight is to replace two meals a day with milk shakes, and then to eat a healthy, low fat meal at night. There are two kinds ...

Slim Fast Powder works well in my coffee and cream instead of straight sugar. It does not deliver the four hours of satiety and is grossly overpriced. The prepared Shakes are no better.

Replace a meal, like dinner, with a low-calorie, no added sugar protein shake to lose weight. It's best to make your own protein shake with fruits, nut butter, and a sugar-free protein powder.