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I have been trying to determine whether I am "breaking" my fast by drinking 2.5 ounces of cream in my morning caffeinated coffee? It seems like some consider anything with calories as breaking a fast, but others think only solid food counts?

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yuuuuuuuuuup. And most importantly, if you are fasting to lose bodyfat, why would your break your fast by consuming only dietary fat which will shut down the release of YOUR fat??? break a true fast with either high protein/low fat real food that you have to chew up OR, if you just completed an anaerobic workout, carbs. – Bill1102inf Apr 15 2012 at 16:07
I think Bill need to take a lesson in fasting. fat is the best macro nutrient when fasting. encouraging autophagy in contrast to high protein. – Johan Lindén Apr 24 at 11:52

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Food = calories = energy

It doesn't matter whether it's solid or liquid. Anything with calories in it will cause some kind of response by your body. Then you're no longer in a fasting state. Of course, the response varies according to type of food and amount.

Using the "only solid food counts" logic, one could puree solid food in a blender, then drink it--and still be fasting.

If you want to fast for the health benefits, you're only cheating yourself with such a rationalization.

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hmmm actually if you define ending a fast by causing an insulin reaction, wouldn't fat not break it because it doesn't cause an insulin reaction?

carbs of course would, and protein does too I believe, but I'm under the impression fat is just used as is.. so no need for insulin to do anything, it just works.

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Why bring insulin into it? Breaking a fast is eating, fat, protein or carb, makes no difference. – Alan Apr 27 2010 at 13:50
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Perfect Health Diet mentions fats, but no protein and no carb on intermittent fasts - they're looking at it from the standpoint of pushing your body in the direction of ketosis for a short period – cerement Apr 15 2012 at 17:35
The dread Atkins used "fat fasts" to break weight loss stalls. – January Mar 8 at 5:04
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I do the same thing and tend to think of it as a fast until my daily meat. Then again, I'm not after any particular goal with doing that so I don't care what you call it. It's just the way I live. :-)

Even when you aren't eating, your body is still digesting and reabsorbing proteins and fats in the gut (enzymes, bile salts, intestinal mucosal cells, etc).

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My definition of fasting is I'm only allowed to drink water. Anything consumed which has calories breaks the fast.

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Simply answer NO.

side bar- milk, and diary produce an insulin reaction. PURE cream less then Milk. Grass Feds less then grain feds.

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Good question; the answer of course depends on the type of fast.

I frequently (almost weekly) do a 36 hour (Fri 8PM to Sun 8AM) carb & protein restricted fast, and only eat fat (mostly coconut oil) while "fasting."

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I have been intermittently fasting for 6 days now, and having heavy cream in my morning coffee every day. I eat nothing else (just drink water) until 2 pm. My eating window is 2 to 7 pm, with fasting the other 19 hours. I have lost 5 pounds in 6 days, so the cream in my coffee apparently is not affecting my results. I am sure my weight loss will not be as much every week, in the weeks to come, but until the cream in my coffee becomes an issue, I am not giving it up!

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But maybe it is affecting your results? Perhaps you would be losing more without the cream? I'm not saying you need to, only that you would need to test under both conditions in order to prove or disprove a significant difference in weight loss with the variable of cream right? Either way, congrats on your excellent week :) – Rachel Apr 15 2012 at 18:31
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Have you tried using butter?

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Having cream in your coffee sounds like a good way to break your fast in my opinion. When intermittent fasting, insulin sensitivity can tank quite significantly, so for most people it is important to break the fast with non-insulinogenic food, i.e. FAT! Macronutrient composition makes a difference when you're ending a fast. If you're breaking a fast with carbs, your body will be at the mercy of high blood glucose levels for way too long, because it won't have the ability to get rid of it efficiently. An exception might be when you do some heavy lifting right before you break the fast. In that case (see the whole carb backloading theory), you will upregulate insulin-independent glucose transporter that will rid the bloodstream of excess glucose before detrimental glycation might start ...

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Why are you fasting to lose weight? You do realize that as soon as you eat normally again you will gain the weight back? Why not try eating small portions spread throughout the day about every two hours? That will keep your metabolism up and running and it will keep your body from going into a fasting state where it will try to conserve energy instead of burning it off. If you do stick to fasting anyway, unless you have a night job your eating window should be 7am to 2pm not 2 to 7pm! You need the energy throughout the day when you will be using it, not at night when you will be sleeping. Can you explain the reasoning behind your set up?

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