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Why Fast? Part Six – Choosing a Method
Posted By Mark Sisson On April 17, 2012 @ 8:00 am In Diet,Fasting,Health,Self-Experimentation | 233 Comments
Assuming you’ve been keeping up with the series, you should be saying to yourself “Hey, maybe this fasting thing would be a cool thing to try out, and it might even make me healthier/live longer /lean out/lose weight /etc.,” which is a sufficiently extensive list of benefits, don’t you think? I could probably go on theorizing and speculating about all the reasons why you should consider intermittent fasting, but I’d rather move on to the implementation. Thinking about fasting, reading about fasting, and reciting the benefits of fasting are all pointless if you don’t know how to go about doing it.
First, let’s go over the different variations of fasting. I’ll give a quick rundown. Each involves not eating for a period of time, unsurprisingly.
A couple other rules that apply to all the given methods:
Okay, on to the variations.
Martin Berkhan’s incredibly popular fasting protocol  is slightly more involved than others, but still pretty simple:
Who should try it?
Because it’s geared toward people interested in losing fat and putting on muscle and strength, Leangains presupposes that you will also be lifting heavy things several times a week, usually in the fasted state. Therefore, Leangains is best-suited for people who will be training on a regular basis. In fact, it’s probably the most meticulously-designed IF program.
People with steady schedules will have more success than people with erratic schedules. A huge part of Leangains is the hormonal entrainment induced by regular feeding times. Once you get locked into your routine, your hunger hormones will adapt to the schedule, and the fasting should get easier, or even effortless.
Put together by Brad Pilon , Eat Stop Eat is really basic:
Who should try it?
People interesting in fasting for the therapeutic benefits  (cancer protection, autophagy, life extension, etc.) would probably get a lot out of this method, as opposed to people interested in the body composition benefits.
Going a full 24 hours without food is a much tougher slog than going for 16 hours. In my experience, going lower-carb and higher-fat makes longer fasts easier, so I’d have to say a low-carb  Primal eater would do better than most.
Ori Hofmekler’s plan is based on the feast-and-fast concept:
Who should try it?
People who have trouble sticking to a stricter fast will do better on the Warrior Diet, as it allows light eating during the time leading up to the feast, but I wonder if you’d be squandering some of the benefits by eating.
Researchers often use this method in lab studies:
Who should try it?
People who have no trouble going to bed hungry. With Leangains, Eat Stop Eat, and the Warrior Diet methods, you can always manage to get to bed with a full belly; with ADF, you will be going to bed on an empty stomach several times a week. That can be tough.
That said, the therapeutic benefits to serious conditions will most likely really be pronounced with this way of fasting. The casual 20-something Primal eater who lifts heavy things and enjoys going out with friends? Probably not ideal. The older Primal eater interested in generating some autophagy and maybe staving off neurodegeneration ? It might just work out. And while I’m not able to tell a cancer patient undergoing chemotherapy what to do, I’d guess that the longer fasts will be more beneficial in that regard, too.
But my personal favorite way of implementing fasting?
I’m not going to put any bullet points here, because none are required. Instead, I’ll give a few scenarios:
I wake up bright and early on a Saturday morning. It’s about 65 degrees, the sun’s out, Buddha’s  walking around with the leash in his mouth, and Red Rock Canyon is kinda calling my name. I’ve got my coffee already and I’m actually not all that hungry from dinner. You know what? I’ll go on that hike , skip breakfast , and really work up an appetite for lunch. Or not. If I’m hungry afterwards, I’ll eat. It’s a fast, but not really.
I hit the gym, put in a light workout, then swing by the beach for some sand sprints . I’m toast by the end and have to stagger back to my car, but I’m not hungry. Even when I get home and smell the grilled salmon, I have no desire for it. I might eat later that night, but only if my appetite returns. I’m fasting post-workout  only because it doesn’t occur to me to eat, not because I’m following a plan.
I’m away on business, stuck on a layover that’s turned into a delay that’s turned into an overnighter. The only food available is a Kudos candy bar – I mean, healthy granola bar (they seriously still make these?) from the mini fridge, a greasy pizza joint on the corner across the street from the hotel, a Chinese takeout place next to the pizza joint, and a slew of fast food  restaurants some ways down the road. It’s late, I’m tired, I had a Big Ass Salad  before I left for LAX… you know what? I’m just going to skip the “meal.” I’ll figure out something at the airport in the morning (20 hour fast) or once I land (24 hour fast). And I’ll be okay either way.
That’s eating When Hunger Ensues Naturally.
This is the most natural, most effortless way of “fasting,” at least for me, because it allows a person to eat intuitively. Although most people will eventually acclimate to more regimented fasting schedules, and many may even need and thrive with that structure, I prefer a more fractal , loose, random pattern of “missing” (in quotations because I don’t feel like I’m missing anything, and that’s the whole point!) meals. I have no data on whether it’s as effective or more effective than the more popular methods, but I do know that I’ll often fast for 16 hours and eat for eight, or skip an entire day of eating, or sometimes (but very, very rarely) even approach a full 30 hours, and it seems likely that this random pattern of eating characterized the eating “schedules” of our ancestors.
In short, we’re all doing the same thing, chasing the same goals. We’re all skipping meals, reducing calories, staying active, and all the while we’re doing this without feeling miserable and restricted. It just so happens that because we’re efficient Primal fat-burning beasts , switching over to burning our own body fat reserves for energy during a fast is a natural, seamless transition. We often don’t even notice it. There’s no effort involved.
That’s the key: lack of stress . If any or all of these fasting methods stress you out, make you irritable, kill your performance, make you feel restricted, or reduce your ability to enjoy life, and these feelings persist beyond the first five fasts you attempt (when some adaptation difficulties are totally expected), you shouldn’t employ them. You should shelve fasting for a while and come back to it later, or never. It’s not a “requirement” or anything. It’s just a tool you can wield if your situation warrants it. In fact, this is the perfect opportunity to conduct an informal experiment of one . Try Leangains for a week or two, then throw in a full 24 hour fast once or twice a week for a bit, then try the WHEN method. Compare and contrast. How did you feel? How did you perform at work, at home, and in the gym? Take some waist measurements perhaps, or analyze your favorite barometer of body composition  to see how the different fasting methods worked – or didn’t work – for you.
Now, I’d like to hear from you. What’s your favorite fasting method? Do you have one, or you just kinda go with the flow? Be sure to review the previous installments below and if you have any questions about any of the stuff I’ve covered in this series, leave them in the comment section and I’ll try to get them answered for you next week. Thanks for reading!
Here’s the entire series for easy reference:
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 live longer: http://www.marksdailyapple.com/fasting-longevity-lifespan/
 lose weight: http://www.marksdailyapple.com/fasting-weight-loss/
 Martin Berkhan’s incredibly popular fasting protocol: http://www.leangains.com/2010/04/leangains-guide.html
 tea: http://www.marksdailyapple.com/refreshing-homebrewed-kombucha-tea/#axzz1sGIoxFuF
 branched chain amino acids: http://www.marksdailyapple.com/dear-mark-vegetarian-fed-bcaas-and-bland-grass-fed-beef/
 eat more carbs and less fat: http://www.marksdailyapple.com/carb-refeeding-and-weight-loss/#axzz1sGITsQuB
 Brad Pilon: http://bradpilon.com/
 therapeutic benefits: http://www.google.com/url?q=http://www.marksdailyapple.com/health-benefits-of-intermittent-fasting/&sa=U&ei=Nc6MT5DYIKf50gGttq3DCQ&ved=0CAgQFjAC&client=internal-uds-cse&usg=AFQjCNGeIJaOs1rKovySU2WbdND1Bj_X2Q
 low-carb: http://www.marksdailyapple.com/low-carb-flu/
 neurodegeneration: http://www.marksdailyapple.com/fasting-brain-function/
 Buddha’s: http://www.google.com/url?q=http://www.marksdailyapple.com/dogs-teach-tricks-too/&sa=U&ei=PNCMT6OROoSc8QT_xNnaCQ&ved=0CAgQFjAC&client=internal-uds-cse&usg=AFQjCNG24vsfLtCo5NY19guCEMKbyqMGTg
 hike: http://www.marksdailyapple.com/urban-hiking/
 breakfast: http://www.marksdailyapple.com/primal-breakfast-casserole/
 sprints: http://www.marksdailyapple.com/marks-beach-sprints/
 fasting post-workout: http://www.marksdailyapple.com/post-workout-fasting/#axzz1sGHiWSm1
 fast food: http://www.marksdailyapple.com/10-ways-forage-fast-food-nation/
 Big Ass Salad: http://www.marksdailyapple.com/two-minute-salad/
 fractal: http://www.marksdailyapple.com/5-more-ways-to-playfully-mimic-a-persistence-hunt/
 efficient Primal fat-burning beasts: http://www.marksdailyapple.com/a-metabolic-paradigm-shift-fat-carbs-human-body-metabolism/
 stress: http://www.marksdailyapple.com/cortisol/
 experiment of one: http://www.marksdailyapple.com/why-self-experimentation-matters/
 body composition: http://www.marksdailyapple.com/body-composition-how-diet-and-exercise-affect-muscle-mass-and-body-fat/
 Why Fast? Part One – Weight Loss: http://www.marksdailyapple.com../../fasting-weight-loss/
 Why Fast? Part Two – Cancer: http://www.marksdailyapple.com../../fasting-cancer/
 Why Fast? Part Three – Longevity: http://www.marksdailyapple.com../../fasting-longevity-lifespan/
 Why Fast? Part Four – Brain Health: http://www.marksdailyapple.com../../fasting-brain-function/
 Why Fast? Part Five – Exercise: http://www.marksdailyapple.com../../fasting-exercise-workout-recovery/
 Why Fast? Part Six – Choosing a Method: http://www.marksdailyapple.com../../why-fast-part-six-choosing-a-method/
 Why Fast? Part Seven – Q&A: http://www.marksdailyapple.com../../fasting-questions-answers/
 Dear Mark: Women and Intermittent Fasting: http://www.marksdailyapple.com/women-and-intermittent-fasting/
 PrimalCon Oxnard 2014: http://www.primalblueprint.com/product/PrimalCon_Oxnard_2014/Events
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