My boyfriend & I have been using this protein shake mix for 29 days (in combination with low calorie, vegan protein bars) . We alternate these 5x per day & eat one meal of a lean meat & salad with spinach, green onions, cherry tomatoes & lite Italian dressing (2 tablespoons) . I've lost 22 lbs in 29 days. And I have hypothyroidism. He has lost over 40lbs in 29 days. It tastes great, isn't gritty & is packed with vitamins & minerals plus superfoods. I am seriously impressed with our results. This is helping us to reach our target weights faster than I ever anticipated.