This topic contains 17 replies, has 19 voices, and was last updated by warblersong 5 years, 4 months ago.
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@rayc333 Yes I too feel the cold more now – probably due to losing a layer of fat. Like you I have to put another layer on. Remember to congratulate yourself next time you notice the cold!
Fasting increases the blood flow to you body fat (the process is called adipose tissue blood flow). So when you are fasting more blood is travelling to your body fat, presumably to help move it to your muscles where it can be burned as a fuel. Do to this increased travel to your body fat, micro-vasodilation occurs in your fingertips and sometimes toes to compensate. So in some cases it’s a ‘necessary evil’ in the fat loss process.”
I for one hate being cold, but know during my fasts it’s something that just happens. I know now that this is a good thing 🙂
This is my first fast day. I’m really impressed with my motivation today. Managed to finish my day on 497 cals…. However I am frozen. Heating on, pj’s on and just can’t get a heat in me. I’ll cope tho seen as it seems to be a good sign… Looking forward to my breakfast and a nice cuppa in the morning lol
I started back in February, back when we were still getting snowstorms and dealing with temps well below freezing.
I was so cold on my fast days that I was sitting in a sleeping bag while working from home, and I was going to bed early just to warm up!
We’ve had nice weather lately, and with the temps in the 80s (25-30C) I haven’t been feeling cold at all. Maybe my body has also gotten used to it after 12 weeks.
I dropped from 90.1kg to 84.2kg in 3 months – my target is 84kg and I’m feeling cold most of the time but especially at night – I have to take a hot water bottle and put a double folded blanket on my side of the bed on top of our quilt – my wife is always too warm as she is in the menopause atm – she can’t believe how much I complain about the cold – I hope my body adapts to it but I don’t know if it will – I now wear a stretchy long sleeved thermal vest all the time and a slightly thinner one at night. It’s a 5:2 (i.e. fasting) day today for me and I don’t feel especially cold because of that.
I must say this is the cast for me also – I have dropped 14kg from 97kg to 83 now, starting in January. I am noticeably colder now and am always wearing a sweater/fleece when others aren’t (start of winter here, in th Southern Hemisphere)… For what it’s worth I have been following a 16:8 fast and not the classic 5:2.
Wondering about adaptation or whether it’s the time to invest in merino? Any comments or guidance is of course welcome.
FFP – I have a standard T-shirt with a high merino wool content my wife just bought me from an outdoor shop but the weather has warmed up quite a bit in the past month so I’ve not been putting my thermal vests on or a micro-thin base layer with long sleeves that I had been wearing a lot under lambswool jumpers – it’s hard to say for sure if I’ve adapted to having less body fat or whether it’s just the general increase in the temperature – I guess I’ll know when autumn sweeps in. I’m down 10kg so pretty happy with how I look and feel – only 1more kg to go so I’m in no hurry – if you just keep doing it – it’s only going to go in one direction. I’m intending to do what other have suggested – continue with the 5:2 weekly pattern but be more relaxed on the fasting days – say 1000 calories instead of 600 – something like that.
Are you one of those who tends to shiver when no one around them is feeling cold? If this happens to you quite frequently, then you must not ignore it. This is because there could be a lot of issues that can lead to this continual feeling of coldness.
Our body relies on various chemical reactions to keep its warmth and when there is a significant deficiency of essential nutrients, it may make you feel cold all the time.
It depends on how fat adapted (ability to run on fat rather than glucose) you are. As your glucose/glycogen reserves are used up your system has two choices. Reduce energy expenditure to conserve whats left or swap over to running on fat. The easier of the two options is to conserve whats left as accessing fat reserves is laborious. So how do you conserve energy? Turn down the internal body thermostat. Its not a lot, perhaps 0.3 to 0.5C. Hence you feel the cold a lot more. Once youre fully swapped over to running on fat this should go away. However most people don’t fast for long enough to be running on pure keto. They always get to the cross over point and end their fast. Hence the simplistic concept of CICO is just that, simplistic.
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25 May 13