When you make the decision to start on a weight loss journey by dieting with Medifast, the popular meal replacement, doctor approved home delivery diet program, you quite probably have made the best decision of your life! The posts and pages in this section of the website are here to help you turn a plan into an action plan for a slimmer, fitter and healthier you!

Let’s take a closer look at this amazing way of eating that makes it possible to lose the excess pounds easily and without any hassle.

What’s So Special About Medifast?

It is highly appealing to anyone who leads a particularly busy lifestyle that wants to lose weight but struggles with finding the time to work on a more traditional style of diet. That’s the kind with diet sheets, ingredient chart, calorie calculations, weighing and measuring and all the other hassles that come with that way of dieting.

It is all time consuming and means having to go to the store to buy the food ingredients, then prepare and cook meals that must conform to the strict regimen that your dietitian has prepared for you. Sure, you will lose weight this way, but if you don’t have the time for it all, it won’t do you a whole load of good if you can’t stick to it.

What Makes Medifast Different?

This is a special dieting system that provides all the food you need to eat delivered to your home packaged in individual meal packs to make it simple and straight forward. It’s fast and convenient because all the food prep and calorie calculating has been done for you.

All you do is heat up the meals in a microwave oven and eat. Fast, simple and best of all, it works!

As long as you stick to the program and do not deviate by cheating on high calorie snacks or sodas, you will lose weight. Pure and simple!


In the 2010 Nutrition Journal study described in the weight-loss section, about half of both the Medifast and the control dieters had dropped out at 40 weeks. In the Diabetes Educator study, Medifast retention was much better than the other diet – but that still only meant 16 Medifast dieters finished the entire 86 weeks, while eight in the other group did. Only 81 of the original 310 made it to 24 weeks in the 2015 Nutrition Journal study.  
I saw a video on YouTube of someone reviewing their experience with Medifast. It seems like a way that I could cut back on calories but still get the nutrition that I needed because it had all the vitamins and minerals. My experience going through the diet started off well and I was surprised by how good a lot of the meals tasted. But then as the diet progressed, it got really monotonous eating the same things over and over. I didn’t experience any more weight loss with this program than I would if I just changed my diet. I think the results are overstated in a lot of the publicity and that was the biggest drawback for me. I really like that it was convenient, but it wasn’t quite what I expected. The only interaction I had with the team was when I called to stop my subscription, and they were very helpful. [19] 
Medifast recommends 30 minutes a day of a moderate-intensity exercise you enjoy and can easily incorporate, like walking. You should limit vigorous activity to 45 minutes a day. Medifast offers a crash course in exercise basics in a downloadable PDF.
The Medifast plan works with an easy three-phase approach. Phase 1 is the weight loss stage in which dieters will lose weight quickly. This phase lasts as long as it takes for the dieter to reach their goal weight. Phase 2 is the 6-week transition phase, which enables dieters to slowly transition from a strict dieting in the weight loss stage, to a slightly more lax way of eating. Phase 3 is the lifelong maintenance plan, which helps individuals to maintain their weight loss for a lifetime with minimal regaining of weight.
“Medifast is safe and effective to do on your own whether you want to lose 15 or 120 or more pounds.” That’s the weight loss claim. Medifast says it is safe and effective and used by doctors for years. In fact, Vitale sold the diet to fellow doctors and that’s how he got that direct marketing business model rolling. Medifast says tens of thousands of doctors have recommended it over the decades but adds, “It’s only been within the past decade that Medifast was formulated to be available to you without a doctor’s supervision.” [7] 
The first—published in the March 2011 Nutrition—was a 40-week randomized, controlled clinical trial with 90 obese adults randomly assigned to one of two weight loss programs for 16 weeks, and the same program followed for a 24-week period of weight maintenance. The first weight loss program was Medifast’s meal replacement program and the other was a “self-selected, isocaloric, food-based meal plan.”
Once you reach your goal weight, you gradually add calories over a 6-week transition period. Medifast encourages following its “3 & 3 Plan” (three meals plus three meal replacements) indefinitely to keep off the weight.
Medifast is a nutritionally balanced and clinically proven weight loss program that helps people lose weight faster and more effectively than traditional diet plans. Medifast is convenient and simple to follow, emphasizing portion-controlled eating at regular times throughout the day. Medifast Meals are individually portioned, calorie and carbohydrate controlled, and contain 24+ vitamins and minerals. Every meal provides adequate protein and is fortified with vitamins and minerals to help you manage your weight while nourishing your body. Medifast Meals are available in a wide variety of foods and flavors. Quick and easy to prepare, they offer a healthy alternative to a busy lifestyle!
Long-term population-based studies suggest soy isoflavones may help play a beneficial role in bone health by reducing bone loss in older women. 37,38 Studies among Asian populations found that women who eat the highest amount of soy were approximately one-third less likely to have a fracture when compared to women who eat soy foods infrequently.23,24 At this point, studies suggest a link between soy isoflavones and bone health, but further research is needed before making more definitive conclusions.
The theory: By faithfully sticking to Medifast-made products and supplementing them with one meat-and-veggies entree each day, you stay full and nourished from lots of protein, fiber and key nutrients while consuming very few calories – typically 800 to 1,000 for adults. That’s just part of the explanation, however.
I travel for a living so I don’t have the option to buy groceries and cook for myself. When I first started doing Medifast years ago, it helped me achieve my weight loss goals. It’s good when you use it but you really have to do what it says – five meals a day and eat your one lean and two greens. However, I have children now so I’m eating behind them or eating what they want which is not always the healthiest.
I had success on Medifast once before, but feel that it contributed to my thyroid becomming less functional. Medifast denies this of course, but soy is a thyroid antagonist, and when you strictly do Medifast, you are living pretty much exclusively on soy. I was doing only the shakes, no meal. My weightloss was proceeding, if you could call it that, at a glacial rate. That is, S-L-O-W (2 pounds in four weeks, despite complete compliance). I think my case is unusual, but again, if you are borderline hypothyroid I really feel Medifast is NOT a good program for you. I was diagnosed finally as being clinically hypothyroid and went on thyroid meds. I found a different program – HMR – which is medically supervised and also uses shakes, but these are milk based (except the shakes made specifically for the lactose intolerant). I have had no problem whatsoever losing on HMR and am down over 40 pounds in 10 weeks. Medifast is okay but I really believe all that soy is what sent my thyroid over the edge. If you are having trouble losing on Medifast, get your thyroid checked and really consider switching to a non-soy based diet program. Once I switched to my health coach at miofit.com, they were able to walk me through what I needed to change so that I began losing 2lbs a week, rather than every 4 weeks!
Being overweight or obese, especially if excessive weight is gained after menopause, can increase the risk of certain cancers, including breast cancer, 40,41,42,43,44 and is associated with an increased risk of recurrence and a lower survival rate for many cancers, including breast cancer.42,45,46,47,48,49,50
I started on Medifast Jan 5, 2010 and I have lost 60lbs to date. It’s not that hard to eat more frequently. In fact, I like it because i don’t feel hungry. The downside is that sometimes I forget to eat. The review above leaves out an important piece of the diet plan: the lean and green, which is not a Medifast pre-packaged meal. You can have lean chicken, beef, pork, fish, etc. They have many simple recipes with 6 or less ingredients. Yes, it is expensive but if you add your grocery bill in the month plus eating out, it’s not that bad. Besides, it does work. They have a great variety of food/drinks to choose from. My only dislikes are the scrambled eggs (yuck!) and Vanilla pudding. If you are motivated to lose weight fast and safely, this is the plan for you. The first 3 days when I started the plan were tough and I struggled with hunger, but once I got over that hump, I was on my way to weight loss heaven 🙂 Believe me I fully researched Medifast prior to trying it and it’s the best thing that happened to me (well, other than my family…) I’m happier, I have more energy and I can actually do things with my kids without feeling like I’m going to pass out. And best of all, the compliments are great 🙂
Concerning putting on weight again, Medifast helps you break bad eating habits and lifestyle changes. If you revert back to cheeseburgers and beer (with no exercise), of course you will gain it all back.
I started Optavia 5 & 1 plan in late August to try to lose 20 pounds. I managed to lose 15 lbs in a month which is great results. It was simple to follow and overall easy compared to other diets. The website is not very user-friendly and food is overpriced. The problem is that most of the food has cardboard taste but still edible. Lean and green meal was only meal I truly enjoyed. After a month I was bored with food selection and not a lot of options more than bars for people on the go without microwave or blender to use.
First off, it (Optavia) only works if you follow the plan. The food is good but people need to keep in mind that these items are full of vitamins and minerals that provide you all of the nutrients that your body needs. So the food does have a vitamin/mineral like taste to it like any protein powder does. I’ve lost 5.4 lbs in my first week. I no longer notice the mineral taste. I’ve been 100% compliant to the 5:1 plan since starting. I got headaches the first few days but that went away as my body got used to the plan. My energy level went up after the 3rd day. I look forward to each fueling and my lean and green. This is a lifestyle change. If you aren’t willing to make a lifestyle change this program isn’t for you.
I was hesitant to start Medifast. My husband as well as myself need to take of over 75 lbs of weight per person. We find the system to be awesome. We eat every 3 hours which is really easy even if You are Working!!!

Dutch chocolate shake 10 count expired 03/23/18. French vanilla shake 14 count expired 03/04/18. Chocolate Chip Soft Bake 7 count expired 03/03/18. Brownie Soft Bake 7 count expired 02/26/18. Sour Cre…
My wife’s coworker lost a tremendous amount of weight. My wife couldn’t help but notice and asked how they did it, and the answer was Medifast. I’ve finished using it, and my wife is continuing to use it in a maintenance kind of a format. When we first went on the program we each lost 70 pounds. It was truly transformative. It takes discipline but it works. Our experience was pretty good although, in the ensuing years, I’ve gained another 20 pounds back. But I can carry that.
I too am a type diabetic and they tried to put me on the 4 and 2 program but i did the 5 and 1, my diabetes came under control fast on the program, i taking my sugar multiple times a day while i was taking Glipizide and got off that in a few weeks and then i could relax because it was almost impossible for me to have low sugar when you eat every 2 hours, i only take half my usual dose of Metformin and i have lost over 75 pounds from June 3rd to October 16th. Good luck and yes ,talk to your Doctor like i did.
It’s easy to find a local clinic to begin the program. For those that would prefer not to visit a clinic, or those that live in areas where the nearest clinic is too far away, there is an online option. Consumers will simply visit the website and click on the “sign-up” button. There will then be the option to choose a specific plan, and then step-by-step instructions will be provided for beginning with placing an order.
I actually found another, this one published in the 2015 Nutrition Journal : “Effectiveness of a Medifast Meal Replacement Program on Weight, Body Composition and Cardiometabolic Risk Factors in Overweight and Obese Adults: A Multicenter Systematic Retrospective Chart Review Study.” That’s a mouthful. This study also found “achieving clinically meaningful weight loss and preserving lean body mass in a broad population of overweight and obese adults.” [15] 
I saw a video on YouTube of someone reviewing their experience with Medifast. It seems like a way that I could cut back on calories but still get the nutrition that I needed because it had all the vitamins and minerals. My experience going through the diet started off well and I was surprised by how good a lot of the meals tasted. But then as the diet progressed, it got really monotonous eating the same things over and over. I didn’t experience any more weight loss with this program than I would if I just changed my diet. I think the results are overstated in a lot of the publicity and that was the biggest drawback for me. I really like that it was convenient, but it wasn’t quite what I expected. The only interaction I had with the team was when I called to stop my subscription, and they were very helpful.
Medifast was suggested by our primary physician. It seemed like an easy way to lose weight. The difficult part for me with every diet is to figure out what I can eat. With Medifast, that decision was easy to make and that’s why we chose it. I order online and everything arrives on time. The diet is reasonable. I love it. The meal bars can be used for snacking and it’s good tasting so I like it. When I first tried it nine years ago, it worked very well. I lost 50 pounds and my husband lost 90. So, it was very good. But lately, I was out of control. In order for this to work, it’s helpful if you can make it the most important thing for you to lose weight and it should take priority over everything. We lost a lot of weight after this and then we gained again two years after that. We tried several times and without so much success. If you try to do it just hoping that eating the meal will help, it’s not working. It needs dedication very much. [19] 
The amount of weight that a person can lose on the Medifast program is unlimited. If a person needs to lose 20 pounds, then the weight will disappear in no time. The same is true if a person needs to lose 100 pounds or even more. As long as the plan is adhered to, the weight will come off in a safe and consistent manner.
There aren’t a whole lot of negative Medifast side effects to speak of, though researchers from Johns Hopkins Medicine have cautioned that very low-calorie diets can increase the risk of gallstones. [10]