Yes! We've had many vegetarian customers who have successfully completed the Skinny Up! protocol. The main concern is the protein portion. In the list given, vegetarians can choose from eggs, cottage cheese, and tofu. In addition, edamame can occasionally be used as a protein source. Seitan is also an occasional option.Sometimes, people wonder if they could supplement with a protein shake. In general, we encourage people to not utilize protein shakes since there are typically larger amounts of sugar substitutes or chemical preservatives that can slow down the weight loss process. That being said, protein shakes are getting better and better all of the time, and sometimes the good outweighs the bad. You could try it and see how you do by watching the scale the next day after trying.