I will share some guidelines Medifast exercise (as well as the experience of several people) in the following article.
You should discuss any questions about your health to your own doctor, but Medifast guidance on exercise suggest waiting a week or two before beginning a rigorous exercise program if you are not exercising. The reason for this is to let your body adjust to the new calorie and carbohydrate levels. If you are already on an exercise program, they suggest cutting down the intensity of a half weeks and drink lots of water when you are working out. They also suggest (and this is just common sense) that you let your body regulate its own speed. In other words, if you feel tired, light headed or telephoto, you should rest or slow down before proceeding. You do not have to push yourself or your body beyond what is healthy or beneficial.
In a real world example, this means if you have a bike two miles, you might cut that to one mile and may go much slower until your body adjusts. Or if you currently encourage your body or muscle failure, you do not push nearly as hard during the first few weeks of dieting. And, if you have not started your exercise program, you may want to hold something tight.
With that said, it is my experience and observation that moderate exercise such as walking or riding a bike is well tolerated by most. No need to do aerobic exercise ton when your body has to have adjustments to make and potentially work hard to get into ketosis (fat burning mode.) Also, from a psychological stand point, you do not want to make the program too hard right away.
This really is a long-term process, so no need to burn yourself out. I have found the best (especially at first) to try to incorporate exercise into your normal routine. Perhaps you’re trying to work a little harder when playing or cycling with your children. But, no need to hit the gym like a professional athlete when you align yourself with a new program, a new way of eating, and new lifestyles. It’s my opinion that the changes are more likely to remain as they are gradually and find it easy and intuitive.
There will be plenty of time to gradually increase your exercise intensity or duration as your body adjusts to Medifast, because you start seeing results, and when you start to gain strength and confidence. No need to rush. Sure, there are no training police hiding around corners waiting to confront you if you over do it, but there’s really no reason to do that. Many see the results without strenuous exercise just because of decreased caloric and ketosis.