Hey folks. Whenever I fast, I feel cold. Does anyone else experience this? Is there anything that can be done to remedy it?
I've always become cold very easily, and attribute it to poor circulation. However, this is unexpected, and definitely unwanted.
BTW, when fasting, I wear the same clothes and am in the same environment as when I'm not fasting.
I usually fast for 8-20 hours. For example, I finished eating at 9pm last night, and probably won't eat again until 4-6pm today. During a fast, I consume nothing but water.
It's rare that I fast more than once a week. I try not to feast before a fast. After fasting, I usually eat ~25% extra food for that meal.
I'm male, 6'1", 160lbs, lean, and athletic, with 9-10% body fat, according to the Navy SEAL body fat calculator: http://fitness.bizcalcs.com/Calculator.asp?Calc=Body-Fat-Navy
Actually, fasting is known to reduce core body temperature, not just the extremities. Even just caloric restriction does this. It is accompanied, and probably caused, by a lowering of metabolic rate.
I don't know if this is good or bad in the long run. There are reasons to believe either. It's certainly uncomfortable, though -- I definitely notice it, too.
Check out this link. http://www.leangains.com/2010/09/eat-stop-eat-expanded-edition-review.html
In the book review Martin has a section entitled "fasting and cold fingers"
The basic idea is that during fasting your blood circulation is centered around your abdomen and less blood circulation to the extremeties. He believes it is nothin to be worried about. It can be helpful (says Martin) because during the fast you are attempting to rid yourself of abdomen fat and the enhanced blood flow speeds this process. Don't take my word for it though, read the site.
I get cold sometimes when fasting. It seems to be happening less and less. My take is to put on warmer clothes and stick it out. Of course you should never do something you feel is harmful to your health. If you are having issues with fasting maybe you should start with a fast for a shorter period of time and extend it gradually over a few weeks to acclimate.
I can get a bit cold during long fasts, i believe the body is just being careful with it's energy reserves. I don't see this as a problem, and it is even rather pleasant during the summers.
A quick spot of movement or exercise warms me back up. Wool socks can help, too.
Not really big on fasting, but for me, I've noticed I get cold a lot easier when I'm cutting the calories. I always attributed it to the metabolism running a bit more sluggishly without the extra calories.
When fasting your body is answering by conserving more energy and that translates in less body heat. That's a first common sign of the body in energy conservation mode. I you were to fast for an extended period of time, you would get even colder, then would have less and less energy and eventually even climbing stairs would seem like a chore.
This is normal, but I think that it can only get better with time and your body getting used to be efficient with its energy.
Funny i stumbled across this today...yesterday i fasted for 24 hrs and at about hr 16 i too became cold and couldn't warm up, but actually was getting colder. I even turned the heat up in the house and the wife was super surprised. I am 6' 192lbs with 7% BF...all of thses answers make sense. Thnx for all the input hackers!
A study by Johnson et al in 1982 showed that the subjects on a calorie restricted diet or intermittent fasting program were leaner and more active yet more vulnerable to cold. Fortunately, unlike, the small animals used in these tests, we have ample methods of keeping warm and this, although an expected side effect, is not to be concerning.
im muslim and i'm fasting for about 18shours this ramadan, just googled cold and fasting and this came up.
why are you lot fasting is this part of your religion too?
my mates dad was a rastfarian and he would randomly fast because he said it's good for the body but this was not aa obligation of his religion.