Just trying an experiment and I am 3 days into a ketogenic diet. Planning on sticking with if for 30-60 days and longer if I dig it.
So I know it is "normal" to have cold hands in ketosis but I had two questions -
1- What is the cause/mechanism behind this? 2 - For those who have been keto for a long-time, with NO re-feeds does this go away after adaptation?
Edit - This is not a starvation diet, I am not significantly hypo-caloric, I am not suffering from a disease and I am not looking for a diagnosis. At 75gm + I have warm hands no matter what. On a ketogenic diet, so far, I feel great and am having no issues other than my hands being cold (not numb). Due dilagence on google shows this is common in Ketosis. However, it doesn't say A - Why people in ketosis have this symptom or B - Whether this symptom abates as keto-adaptation occurs. So for those who have been keto- or are keto- do you have this? Did it go away? Is there any study or consensus on the cause.
For instance - Light-headedness on Keto- is almost always related to Potassium and Sodium issues. That is the sort of data I am asking about.
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Might be related to Rayaud's Syndrome/Phenomenon which is possibly an autoimmune disease that cause cold hands and feet when exposed to cold. Not sure if there's a link to ketosis there.
Listen to the answer for question 6 in this podcast.
Personally, when I started doing IF and going into ketosis, I had an increase in body temperature and an overall immunity to cold - including hands, where in previous years, my hands and feet would become cold before anything else. (Perhaps this was also due to the shift to a higher fat vs carb intake.) Of course things like taking cold showers probably help the adaptation also.
There's a protocol whose name I forgot that involves sticking your hands alternatively in cold water and warm water for a few seconds each for several cycles to improve sensitivity.
We naturally cut blood flow to hands feet in order to keep our core temperature, but there's for some people a mechanism that provides an occasional extra pulse of blood to the hands when exposed to cold to prevent frostbite, etc.
Exactly what has happened to me. Extreme warmth. Hands are always warm to the touch, even in winter. I surprise people, because their hands are usually cold. Less heating required.
Interesting. I never knew that was normal. I get really hot when I'm in ketosis, like right now. My husband is literally B*&^ing at me as I type because I have the french doors to our balcony open and I'm in a tank top and shorts in Warsaw, Poland. lol (It's 48 degrees right now) Maybe you need to increase your caloric intake or do some cold dips so you can get your BAT cooking. :-)
I'm assuming that you've never had these symptoms before your experiment, that you're in good health, and that you're not in any phase of menopause (also assuming you're a woman). If all those are true, then I have a couple of ideas:
- You could be subclinically hypothyroid. You could do a Mary Shomon thyroid panel for $250 to get some lab values to confirm this. This panel comes with with a one-on-one consultation about your results with best-selling author and patient advocate Mary Shomon.
- You could be one of those people who do better on a higher level of carbs. Paul Jaminet advocates a ketogenic diet therapeutically ??? only for specific medical conditions, and only for a limited duration. People post to his blog regularly about how a level of carb ingestion far above that required for ketosis resolved all sorts of bad symptoms.
Personally, I'm colder now than I was on a SAD diet, but I've lost nearly 30% of my body mass, half of which was fat, which might explain my situation. I've always had cold hands and feet in weather below 60??F, so I ketosis probably doesn't explain my situation.
I have been in Ketosis for more than one month now, and I just started getting cold today. I tried drinking warm/hot water and that didn't help, then I tried eating. 10 to 15 mins after finishin my meal I started warming up.
So I never experienced this when I went into ketosis. But I heard about it. Best answer I ever saw is that your capillaries get smaller and you blood slightly thinner since you are not pushing through as much blood oxygen.
I supposed this is related to the new metabolic pathway for energy.
I was never able to find any scientific literature on this, so it's just from what I've seen in forums.