The Ultimate Diet 2.0


When dieters attempt to achieve extremely low body fat levels, hunger, muscle loss, and crashing hormones are all part of a coordinated set of physiological adaptations that occur in the body. The Ultimate Diet 2.0 not only explains the physiology behind those adaptations but will give you a specific training and diet program to sidestep them and achieve your goals.  All orders including the UD2 Addendum PDF with the purchase.

(6 customer reviews)
SKU: V4081302423 Category:


About the Ultimate Diet 2.0

Lean dieters (men at 10-12% or women at 15-17%) trying to get extremely lean face many potential problems. They face muscle or performance loss, crashing hormone levels, runaway hunger and many others.  These are simply the difficulties that the non genetically elite or natural dieter must face.  The Ultimate Diet 2.0 offers a solution.

The diet itself includes two discrete phases: fat loss and muscle gain.  The fat loss phase generates maximum fat loss without muscle loss.  In contrast, the muscle gain phase creates an anabolic rebound to build muscle.  Each phase coordinates training, nutrition and supplements to optimize the goals of that phase.

Topics in the Book

Before getting to the diet, The Ultimate Diet 2.0 examines the physiological reasons getting extremely lean is so difficult.     This includes a discussion of calorie partitioning along with the hormonal changes that occur during dieting.

The processes of both fat loss and muscle gain are described.  As well, the book examines different general training systems in terms of why they all seem to work.

Finally, the diet itself is described.  This includes an overview of the full cycle along with detailed examinations of each phase.  Every component of the diet in terms of how to train and what to eat are laid out in detail.  Nothing is left to chance.

Like The Stubborn Fat Solution, The Ultimate Diet 2.0,  is aimed at lean dieters trying to achieve extreme levels of leanness.  Dieters will not benefit from the approaches in The Stubborn Fat Solution until they are very lean.  Men should be at 10-12% bodyfat and women at 15-17% before using the information in this book.

The Ultimate Diet 2.0 Addendum is included with your purchase and covers a number of important topics. The first is a 2-week break-in period meant to make transition into the diet easier.  Information for what to do between dieting blocks is also provided.  The book also addresses how to move to maintenance eating when the diet is over.  Finally, it offers expanded information on how to adapt the UD2 for endurance or strength/power sports.

Additional information

Weight N/A

Softcover, Softcover + PDF, PDF

6 reviews for The Ultimate Diet 2.0

  1. Anne F.

    UD2 is the only diet I’ve ever been able to stick with. Technically it’s more than just a diet, as the training protocol is crucial to successful recompositioning. The plan is incredibly detailed, but once you understand the basic concepts, the training and diet specifics become obvious.

    Without fail, I’ve achieved that elusive “lose fat while building muscle” goal every time I’ve done UD2, while routinely setting new personal bests on my lifts.

  2. David Platte

    Great book. Lyle wrote it in very simple terms as well, so don’t feel like you won’t understand it. It tells you how to structure your diet on which days and a great way to recomp your body.

  3. Jackson Thomas

    Amazing book. Extremely comprehensive. Even if you do not follow the diet, the information inside on both nutrition and training is well worth the price. I find myself coming back to this one often even when not doing the UD. Lyle’s writing style is great as well.

  4. Christine

    The UD2 is amazing science wizardry. I used and still use this program to drop unwanted fat but to keep much coveted muscle… The 7 day schedule not only makes the plan convenient but adds an element of a “light at the end of the tunnel” ease to dieting…anyone who seriously diets knows that means a ton. Super adherant friendly and to me seems a cool breeze in the stagnant pool of the ridiculous, and even truly insane programs out there…try it. IT WORKS.

  5. Carl Juneau, PhD

    The first science-based program I bought and boy I’m glad I did. I was already in good shape when I started it, but I managed to build 2-3 lbs of muscle and lose 4-5 lbs of fat in ~3 months while on the program. This might not look like a lot, but I had been lifting for 9 years at that point so gains were hard to come by. I’ve been lifting for 19 years now and this is still one of the best programs I did period. Plus, the physiology is explained clearly; it’s almost fun to read. Would recommend.

  6. Hunter

    To keep this short and sweet, I purchased UD2 and have followed everything exactly how it is laid out in the book. I’m in my 6th week and have seen the most consistent results out of any other type of program. I have gone from 210lbs to 198lbs so far. It’s grueling but it works.

    Id give this book a 10 out of 5 if I could.

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