Here's a weird question. I follow the Paleo diet and in general, my first meal is around 10:30 to 12 in the afternoon. I have found that, no matter what I eat: protein in the form of eggs or meat, fruit, nuts, whatever, inevitably about one hour later, my body temperature skyrockets or at least it FEELS like it skyrockets. Sometimes I sweat, sometimes not, but the feeling is uncomfortable. The feeling is also accompanied by slight mental fogginess, which clears up after a couple of hours. The heat sensation comes from the center of my body and kind of emanates in waves.
I've never been diagnosed with hypoglycemia or diabetes, I am very fit and have no other medical conditions (that I am aware of, anyway). How weird is this? I've had this condition for as long as I can remember, even before I followed the Paleo eating plan. It used to be worse in the past, I would actually become drowsy after eating and unable to function. This condition doesn't seem to happen during my evening meals, only in the morning and afternoon.
asked byChris_D_1 (20)
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on May 17, 2010
at 06:46 PM
First of all, check your temperature at several different times of day to see if you really have a fever, and to see if your body temperature varies throughout the day. Diurnal temperature variations usually peak in the early evening ( http://nic.sav.sk/logos/books/scientific/node45.html ), so if you have a fever in the morning it could be something you need to talk to your doctor about investigating further (such as inflammation or hyperthyroidism).
About an hour after you eat, your stomach contents begin to be emptied into the duodenum. The acid causes the secretion of vasoactive intestinal peptide (VIP) and secretin, which help the body to neutralize the acid ( http://www.vivo.colostate.edu/hbooks/pathphys/endocrine/gi/secretin.html and http://www.vivo.colostate.edu/hbooks/pathphys/endocrine/gi/vip.html ). These hormones are both vasodilators, which can cause flushing (heat sensation) and lowering of blood pressure (decreasing the blood supply to the brain, leading in some cases to drowsiness). This effect may be accentuated by the fact that digestion in general shunts blood into the intestines, and away from your brain.
The reason that this happens early in the day and not in the evening is probably due to diurnal blood pressure variation--your blood pressure is higher in the evening than in the morning ( http://www.mayoclinic.com/health/blood-pressure/AN00391 ).
You can try eating smaller portions or eating more slowly to see if that helps your symptoms. You may just want to skip breakfast altogether and use your morning as an opportunity for intermittent fasting.
If your symptoms are severe and include nausea, vomiting, diarrhea and/or rapid heart rate, these can be signs of dumping syndrome ( http://www.mayoclinic.com/health/dumping-syndrome/ds00715 ), which is a problem caused by the stomach emptying too rapidly. A physician can prescribe medications to treat dumping syndrome.
on July 26, 2013
at 09:42 PM
the person that gets cold is probably experiencing low hormones, such as low t3, which requires carbs. You should add carbs or you will get sick as you age Patricia. it happened to me. you're cold because your metabolism slows down to conserve energy. stoke the furnace and eat more carbs or you risk damaging your hormone receptors, especially thyroid.
on June 16, 2011
at 02:36 PM
Personally, I'm thinking it is just the metabolism ramping up in digesting the protein, which is normal. However, the odd thing is that it doesn't happen at night. It sounds like this is your first meal of the day that it happens at though (maybe that's why). Maybe take a protein shake in the morning after waking up and see how that changes things.
on June 16, 2011
at 01:20 PM
When I'm strict with paleo, I find that I get cold rather than hungry. Actually, I don't get hungry at all. So, when I'm uncomfortably cold, I eat, and that sensation goes away. But, sometimes, I do overheat like you. I just chalk it up to more energy than was needed.
on March 14, 2011
at 12:32 AM
I get this too from eating big meals, but I have to eat large amounts of food and I don't put on weight... always figured it was my body 'burning' the extra rather than putting some meat on my bones. >< My body temp doesn't go up but skin gets hot to the touch and I can tolerate cold much better.
on March 13, 2011
at 10:28 PM
What oil are you using? I get "hot" pretty quickly after consuming soybean oil. Your body is having a reaction for a reason, you just need to figure it out.
on March 13, 2011
at 09:43 PM
Inflammation as an allergic reaction (or sensitivity) to something? Omega-3 supplements were heating my brain!