We’re not saying it’s CGI or Photoshop that’s responsible for creating these onscreen bodies. Rather, it’s a secret, weeklong get-shredded strategy that separates people who make their living with their bodies from guys like us who just want to eat popcorn and watch them dodge bullets. The movie stars, the underwear models, the pro bodybuilders—they don’t look like that all the time. They can’t. But when it’s go time, they’re ready with Hollywood’s biggest get-shredded secret.
During the first week of a reduced calorie and carbohydrate diet, you will flush a lot of excess water and lose weight rapidly. This is neither unhealthy, nor an indication of what your rate of weight loss will be like during weeks 2 and 3. With that said, men should expect to see an 8 to 12 pound loss during these 3 weeks, and women will likely lose 5 to 10 pounds. 

Surround yourself with encouraging people. Your social environment has a huge impact on your success, so make sure the people you talk to are encouraging you to stay fit. Ideally, you should have a few friends who are losing weight or have done so in the past. Note that friends who want to lose weight but have never done so may not be supportive- look for successful people who will bring you up with them.

Real talk: It could take weeks or months to see the metabolic effects of exercise on the scale, and even then, building muscle, which is denser than body fat, could lead to weight gain. "Do what you like because it’s good for you," Dr. Seltzer says, noting the way exercise is awesome for your heart, mental health, and more—and that not all measure of progress can be seen on the scale.

Once your muscle glycogen stores are full, they’ll remain this way for days, as long as no other strength training is performed (because muscle glycogen is burned only during high- intensity exercise). Carbing up on Wednesday also gives you time to make adjustments. If you feel you look flat and small on Thursday or Friday, increase your carbs a bit. Bloated and soft? Cut them back a bit. Make adjustments by 25–50 grams at a time.


Dr. Ian Smith is the author of the #1 New York Times bestselling books, SHRED: THE REVOLUTIONARY DIET, and SUPER SHRED: The Big Results Diet, and BLAST THE SUGAR OUT. Dr. Smith’s highly anticipated newest book, The Clean 20, became an instant New York Times best seller, helping hundreds of thousands of people reduce bad sugars from their diet, lose weight, lower blood sugar levels, and cut the cravings. Read More
I'm busy with the program now and trust me, the 8 x 8 stiff leg deadlift on the one lower body day is more than suitable to hit the hamstrings and even more so, the lower back! Trust me it kills. The workouts are already hectic if you're following the program to a T! Including the cardio rounds after weights (with only 30 seconds rest). Doing deadlift in this 21 day challenge would be next level but by all means if you think you could smash it out, replace the dumbell stiff leg deadlift with normal deadlift on the one lower body day. Have fun, this is a killer routine!
I started at 245lbs, I began my journey in 2015 I am currently 170lbs at 5'10. I never ever thought I would be addicted to working out, I love it! I started simply by doing morning and evening walks for a year then I wanted more so I did a lot of research and came across so many trainers but Jillian caught my attention. I've never felt better in my life. I'm a mom of three beautiful boys who by the way do JM with my youngest being only 5 years old! Thank you Jillian! You have helped me so much!
"Only doing abdominal-focused workouts, like crunches, won’t help you banish the bulge. Belly fat is simply where your body stores energy, so you need to take a whole-body approach to tackle it. HIIT training (high intensity interval training) is a great way to burn fat and get your heart rate up. Squats, burpees and treadmill sprints are all examples to try."
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