In Jason Fung’s book “The Obesity Code”, he outines two example methods of fasting; 24 hour & 36 hour fasts. Below are printable sample meal plans for those time periods. Each version has pre-progammed example meals + empty versions that allow you to program in your own meals.
Whilst what you eat inbetween fasts is of course crucial, assuming that you make your diet relatively healthy, the core component to focus on is adherance to the fasting periods of the diet plan. These are where your blood glucose and insulin will decrease, allowing your body to burn its fat stores. Resulting in gradual weight loss.
Sample 7-Day Meal Plan – 24-hour Fasting Protocol – Click to open printable PDF
Sample 7-Day Meal Plan – 24-hour Fasting Protocol – with Blanks – Click to open printable PDF
Sample 7-Day Meal Plan – 36-hour Fasting Protocol – Click to open printable PDF
Sample 7-Day Meal Plan – 36-hour Fasting Protocol – with Blanks – Click to open printable PDF
Hi if I do a 48 hour water fast do I eat the next or next 2 days and then fast the next 48 hours again
Hi Emma. Are you asking how long to leave between 48 hour water fasts? That would down to yourself and any medical advisors you’re working with to decide.
Hi! Yesterday my doctor talked to me about the Obesity Code book and found your plans here. I’ve gained 20 lbs in 2 months and I’m a fitness instructor. My insulin levels look high and unfortunately my doctor says I’m close to pre-diabetes. My question is.. since I teach high intensity cardio classes 5 times a week, do you think fasting is appropriate? I so, which plan should I choose? If no, what options do i have?
I think it’s fair to say that high intensity exercise whilst fasted is difficult. Both because you might come into it with low energy, and because after you’ll likely feel a lot more hungry than you would be otherwise.
In terms of options, you can reduce consumption of glucose containing foods, and eat within a shorter eating window. Both should lower your glucose level, which will in turn lower your insulin. Also worth thinking about whether your sleep quality and duration is optimal, and if it’s not, take steps to improve it.
John according to Dr Fung the comment you made you will have “low energy” is incorrect…..I continue to is IF and no issue with entry levels….
IF is typically 16/18/20 hour fasts – whereas Jason’s plan is 24 to 36 hour fasts. Quite a difference.
But if you can fast for 24 hours and still have plenty of energy for a high intensity workout – that’s great 🙂
Is it ok to eat Bran Buds & Pears?
Bran buds contain sugar as the second ingredient, so you’d ideally want to minimize consumption, or even better – replace with a sugar free option. Pears, as in the fruit? Fruit is ok in moderation – too much and you’re just consuming excess sugar.
Hi, I am 62 years old and have just reached 24 hours in my first fast cycle. I was wondering if I could use stevia in my coffee and tea?
Hey. Congrats on your first 24 hour fasting cycle.
Generally speaking pure stevia will be the “lesser of evils” compared to sugar or artificial sweeteners.
That said, it’s worth being aware of research showing sweeteners can increase insulin response (study link) and affect the gut biome (study link).
Hi, I’ve been intermittent fasting for 60 days on the 18/6. I am type 2 diabetic. I’m finding my glucose in morning very high. I only have coffee , no sugar and don’t eat till noon. My sugar returns ro normal after I eat lunch which is keto. I’ve been researching this and I’m aware of the dawn effect. I even stopped drinking coffee ro se if that wad it. I’ve lost 25lb in these 60 days and I’m 63 y/o female.
Hi Bernadette, congrats on the weight loss. How does your evening blood glucose level (2+ hours after your last meal) compare to your blood glucose level the next morning?
Ty for responding. My after dinner glad is between 110 to 130.
Hi Im new with fasting, if I start with 16/8 fasting it will be good start point? 16 hours fastin, 8 hours 2 to 3 meals.
Thanks.
Hi Ronald, yes, intermittent fasting is a good strategy for general health. It doesn’t even need to be as extreme as 16/8 to see benefits. For many people, even 14/10 would be an improvement.
What’s up, Doc?
I am 6’7 – 200 lb 32 yo male wanting to get back in shape. My goal is to lose 35 lb and I gain muscle mass by the second. My question is – Is a 36h fasting regime suitable for me to achieve this goal? How can I switch back to a normal regime once I hit my goal? Should I just keep going? Thanks for putting this info out there!
Hi, FYI I’m not a doctor. In regards to switching back to a normal regime, you could look at intermittent fasting – something in the region 16/8 or 14/10.
How often would you do the 24-36 hour fast?
I think it really comes down to experimentation for the individual. Based on your own biology, lifestyle and goals.
What works for me (relatively young, low bodyfat %, active lifestyle), may not work for someone else. We also all react very differently to fasting, so that should be taken into account too.
Hi John, curious how a pescetarian could follow this protocol? I eat dairy, eggs and fish but not fowl, pork or beef. Any suggestions would be much appreciated. TIA.
Hi Stefanie. Yeah, absolutely pescatarians could follow this plan. Substituting out the meat for fish or eggs shouldn’t be an issue.
Hi John.
I am diabetic for couple of years can this fasting suit me?
Haruni
Hi Haruni. Certainly diabetes can complicate dietary interventions such as fasting. For example, if it’s type 1 diabetes (or type 2 and you take insulin), then you may need to adjust your insulin dosage when fasting. You can imagine that if you’re not consuming food, you don’t need the normal insulin load to clear the glucose from the blood (because you haven’t consumed anything to cause a glucose spike). If you took insulin in that scenario it could make you hypoglycemic, which is dangerous. If it’s type 2 diabetes (and you’re not taking insulin), then that makes things a bit… Read more »
Hi Doc,
I am 5ft8 and just 64kg. I am a type 2 diabetic, and been so for about 5 years. I am on Insulin now. I am having to Insulin (slow acting) once at night and (rapid acting) 3 times day.
I have been told that my pancreas are not functioning and not producing Insulin.
Will this program work for me?
Hi Mizan. In short, fasting could be dangerous for you (and anyone else taking insulin), and you must speak to your doctor to get his advice and approval. Longer answer… Firstly, to clarify, I’m not a doctor – if you’re referring to Dr Jason Fung, you’ll be able to reach him at his website. With regards to diabetes that requires insulin injections, you absolutely need to seek advice from a doctor with regards to fasting. We need to touch on how insulin and glucose relate in order to understand why. When you inject the insulin, it triggers your body to… Read more »
Dessert -not “Desert”
Thanks Molly, good spot! I’ll change that when I get a moment.
Im wondering if a multi vitamin is ok at any time
Hi Tracy.
Yes, you can take a multivitamin at any time. Personally, I prefer to avoid taking multivitamins on an empty stomach, as it doesn’t feel so good (for me). I generally only take them with meals. So in practice that means I don’t take multivitamins whilst fasting – but that’s just a personal preference.
Hi!
I am doing the 7 day fasting, no food, can i have cream in my coffee? Half and half?
Thank you!
Liliana
Hi Liliana. Of course, ideally you avoid coffee + cream whilst doing your fast. But, if that’s not an option, then yeah – absolutely, go for it with the coffee + cream. You will still attain many of the sought after benefits.
The fact that the FMD diet works, where participants consume calories for 5 days, suggests that going zero calories is not absolutely necessary.
Hi John,
I have 3 of JF’s eBooks. Thank you for making the plans so easy to print out. 🙂
Hi Tina, thanks for the message. Glad you found it helpful!
Hi John,
What are the times to eat Breakfast, Lunch, and Dinner? And how many hours do I have to wait between meals? I tend to eat very late in the morning (about 11ish). So if 11 is Breakfast, how long do I wait until “lunch” and then “dinner”? I’m only on Page 50 of the book but would love to get into this routine asap using your helpful guide.
Hi Elizabeth, thanks for your message.
With regards to meal timings, I believe they can be flexible. The core thing to focus on is the fasting length, and making sure that from your last bite in the evening, to the next bite 24-36 hours later, you are fasting.
Other than that, it won’t make a huge difference if you have your meals at 9am, 1pm & 7pm… or indeed you squeeze 3 meals into the space of just a couple of hours. As long as your fasting period is upheld.
I am going to hoestly try your trustworthy advice, at 69 I’m told it’s not to late.
Thank You