What is explicit is that the Fast Diet is not prescriptive. You are given general guidelines to follow, but how you carry them out is up to you.

Some fast consecutively, most do not.

If fasting for two days consecutively works for you, keep doing it. If you are unable to keep the calories at 500 or if you stop losing weight, try something different.

He says two consecutive is fine but not for him because he finds it too difficult. I’ve found myself doing two separate, one with the 600 calories and one with nothing except water. Find the calorie free one easier in some ways…

Mosely says its ok and can be doen consecutively, by memory he says people found easier doing seperately but it does not matter… when you think about it, its food selection, and losing about 4000 calories per week, 16000 per month , that s the key. enjoy it works, and you dont go.. oh dam i have broken the diet , WTF ill give up.. if you break on a diet day then do the diet day the next day, or the day before if you have a function on diet day to attend. simple

Perhaps Pattience
it might be a good idea to read the book and the “how to do the fast” and “faq”
god luck with fasting

This is my thoughts and also a question, I always do consecutive days in a row due to the fact that it takes 14hrs to get into fat burning mode, so once I’m there wouldn’t I want to stay and burn as much fat as possible? I could be looking at this wrong.

I do Monday, Tuesday each week. Sometimes I do 600 cal, but mostly I do fluid only fasts. Occasionally I do three days. I only feel hunger briefly on day one and have plenty of energy for a stiff gym workout on day two. Two fast days in a row I find a very effective way of losing weight.

So. Given Michael’s example (in FAQ’s Is a “fast day” 24 or 36 hours?) for a single day of fasting if your last meal was 7:30pm on Sunday evening then would a 2 days fast finish on Wednesday 7:30am?

Additionally as DebbieDo72 has mentioned if it does takes 14 hours for the effect to kick why break the fast when you’re in this state of ketosis?

@steve. Yes you are correct with youre timing of 730pm to 730am for two consecutive days. You are always burning a combination of fat/glucose/glycogen. That ratio changes though. Once you enter ketosis you are deriving most of your energy from fat. I doubt you will enter ketosis after 14 hours. Possible but highly unlikely. Buy a glucose/keto meter and test yourself. They don’t cost that much. 0.5mmol ketones is the accepted start point for entering ketosis. It takes me about 20 hours to get into ketosis but I water fast and have been doing this for 3 1/2 years now. Originally it was taking me about 48 hours to get into ketosis. I disagree with Sim about the fact that there are no known benefits of being in ketosis. Look up Valter Longo. Also Peter Attia but he does not present the topic for the layperson. Not easy to understand unless you are a biochemist.

I kind of think 2 consecutive days might be slightly better at burning fat than two non-consecutive days. However, it would depend on one’s diet and probably other factors, for many people it might be a toss up.

While things like calories are a push, what is different is the amount of time one spends fasting after all the glycogen is burned out of the liver. That is when the rate of fat burning has to increase and ketosis really starts going increasing. For most people that take around 20 to 24 hours to consume all the glycogen stored in the liver. Let’s say 24 hours …

2 consecutive days : 60 hours – 24 hours = 32 hours without liver glycogen

2 non-consecutive days: 72 hours – 48 hours = 24 hours without liver glycogen

Now if someone is very fat adapted and gets through the initial phase faster, the difference wouldn’t be as great and there is likely a point at where the 2 non-consecutive days would result in more time at the higher levels of fat burning.

However, if this is a person’s only concern, then just use a ketogenic diet on non-fast days to maximize the fat burning while fasting. There are many other benefits to fasting, such as better hormone regulation.

I use a freestyle neo. They are cheap but the strips will cost about 50-70 cents each. They are one use disposable.

I find it easier not to eat that to limit what I eat. So I do 2 consecutive days and have only iced tea. I can still do a combo of walking and biking for an hour on my fast days.

On my food days I have 2 meals.

I’d like to say that helps me burn fat like crazy and I just drop pounds but that’s not the case. I still struggle to lose weight but the point for me is that this is how I can discipline my eating and not binge carbs.

Ultimately, it boils down to what fits best for you and your lifestyle.

The argument of whether the two days are consecutive or not is a bit like Lilliput and Blefuscu arguing over which end an egg should be broken.