Lasting Fat Loss at Last

AltShift works by not only asking what we should eat to be healthy and lean, but also when we should eat those foods (over days, not hours) to make the most of their macronutrient content and to keep our bodies from adapting and halting fat loss.

*Availiable in PDF only

Dieters fail when:


The guidelines of the diet they choose are too difficult to follow long term. Nobody wants to weigh and measure everything they eat for the rest of their life.


They eventually feel too lousy to stay motivated. If your diet doesn’t improve your health, there will come a point when you can’t take any more.


Results stop coming, leaving them far short of their goals. When you want to lose 30 pounds, getting stuck after losing only 10 makes it hard to stay diligent.

AltShift was created with these important questions in mind:

Why does any change to a new diet protocol seem to work, at least for a little while?

It doesn’t even matter which diet you choose, almost any significant change will get you some short term results. What does this say about our bodies and fat loss in general?

Why do so many diets only produce results temporarily before they stop working?

You know the routine. You start a shiny new diet and some weight is lost on the front end, maybe even quickly, but then you hit a wall. You persist for a while, but nobody can keep pushing for results that aren’t coming. What does this say about our bodies and fat loss in general?

Is it natural to eat the same way every day?

Is it even remotely possible that we evolved under conditions in which our calorie and macronutrient intake were roughly the same each day? Of course not. Yet diet after diet is designed on a daily prescription. If our bodies were molded under more varied conditions, what does this say about them and fat loss in general?

Should nutrition plans that maintain health be prescribed for those who are far from a maintenance goal?

Have you ever wondered why your fit friends can eat certain foods without getting fat, yet when you eat those foods you can’t lose a pound? Maybe being healthy and getting healthy require that we ask different questions for a while. If so, what does this say about our bodies and fat loss in general?

Get Started Now For Just $25 (Includes 70 recipes!)

Purchase AltShift eBook (PDF)

AltShift is changing lives!

Take a look at what these people have to say. And be sure to check back here often because this list will always continue to grow as more and more people get the sustainable results that this diet delivers like none other.


"It’s easy to see myself doing this indefinitely. I feel great! I haven’t had any of the ups and downs with my energy or motivation that I felt when we tried other things." Sheryl Seib was the first person to ever try AltShift and she lost 5 inches in her waist in just 6 weeks. Her results just keep getting better!*


Thank you AltShift! I'm 138 days into this "diet" and I have yet to feel deprived. I feel great and have tons of energy. I love learning more and more about the science behind this protocol and I LOVE the focus on health. I just finished reading "The Big Fat Surprise"... It's crazy to me how wrong conventional wisdom is about fat loss. I'm eating lots of saturated fat and I do not do any cardio or spend a bunch of time at the gym. I walk as much as I can. I prioritize sleep. I meditate. I lift weights twice a week. And I've lost 25 lbs and 27" since starting AltShift on January 31... which means I've had to get all new clothes!*


285 to 248lbs, 19.5 inches lost, down 2 pants sizes, XXL To XL shirts, can do a pull up for the first time ever! 90 days shifting. Still a work in progress.*


Started Nov 13th, sick and sore (10 year thyroid level issues and arthritis in the knee ). I've been pretty compliant. Not one food slip up, but a few weekend drinks... Down 55 lbs and 39 inches. I make it to the gym about twice a week. My aches and pains are now going away so I'll be walking and lifting 4-5 days a week as soon as next week, look out. Best thing to ever happen to me! No pain equals much gains!*


6 months of AltShift. Down 3 inches in the waist and 3.75 inches in the hips. Plenty of energy to work full time and keep up with my three young children! For the first time in my life the crazy food cravings are virtually gone!*

*Results may vary from person to person.

About the Author

Jason Seib

Jason Seib is the creator of the popular AltShift Diet, the author of The Paleo Coach, co-host of the popular JASSA Podcast and AltShift Podcast, founder and co-owner of AltShift Fitness and Fat Loss, a successful small gym in the Portland, Oregon area, as well as founder and co-owner of, an on-line training site and community. He speaks on the subject of fat loss regularly, delivering his Sustainable Fat Loss Seminar around the US. Jason’s passion is guiding normal people to extraordinary levels of health and fitness and he has built his career by helping thousands of people to change their perspective and find a healthy, sustainable path to their goals.