The first on the list of comparable products to Optavia is Wonder.  This weight loss program claims that its scientifically formulated meal replacements will help you lose 5-7 pounds a week without exercise, just by replacing two meals a day with their shakes.  The second product similar to Optavia is Slimfast meal replacement shakes. They claim that by replacing two of your daily meals with a shake, you can lose 10lbs in 2 weeks without changing your diet or exercise routine.  A box of 7 shakes costs around $15, and they offer a range of other snacks and supplements. One final comparable product is the Nutrisystem. This meal replacement claims that you can lose 10 pounds in two weeks without changing your diet or exercise routine.  For $89, you get a box of 7 DAY WEIGHT LOSS KIT with 28 meals. They also offer protein shakes, various flavors of healthy snacks, and even diet pills.