Most of the questions that I get about the volume of the Medifast food comes from people who are concerned that they are not going to have enough of it (or those who worry that they will be hungry.) Sometimes though, I hear from people who are concerned about eating all of the six daily meals (five prepackaged and provided meals and one “lean and green” meal that you provide yourself.)
I heard from someone who said: “I'm honestly on the go all day long. I eat my lunch on the way to work in the car. I am starving when I get home and I do eat my lean and green meal then but but from eating three additional meals at my lean and green dinner, I just don 't know how I'm going to fit three more meals within my day.
I'm not one hundred percent sure what would happen because I've never been in this position. I am sure that some suspect that you would lose more weight but I'm not sure that this is the case because your body needs regular fuel to get and stay in ketosis. I believe that there's a reason Medifast is designed to consume all of the smaller meals.
Admittedly, it's not as if anyone is going to scold you for missing meals, but I would suggest trying to choose meals that can be eaten on the run. For example, any of the bars do not need any preparation at all. You just remove the wrapper and then eat. I could see eating one in between classes. It truly would only take a few seconds. Another good example of something that can be eaten is quickly one of the ready to drink shakes. (In fact, on really busy days, if she drank a shake and ate a bar between classes, she would have consumed two meals which meant she only had one more to go.
Another suggestion would be to use one of the meals as a dessert at lunch or dinner. The soft serve or brownie works very well for this. One combination that I really like is mixing the Medifast latte with the cappuccino. This is a nice morning pick me up and you already have two meals down before you've eaten the mid morning.
So to answer the question posed, probably very little will happen if you do not eat all of the food. No one is going to demand that you be accountable, but you might not get or stay in ketosis as quickly. Or, you might find yourself hungry. I suspect you would not lose that much more weight either. Since you would have food left over, your monthly package would last a little longer, but this really is not the idea behind the diet so I think it's a good idea to try to squeeze in more meals if it's at all possible.
I know that some days are extra busy, but it can help to try to take an honest look at your schedule and see if there are any opportunities to squeeze in meals that require no preparation and need very little time to consume. Or, if this is not an option, you can always combine more than one meal when you do have the opportunity to eat.