Another question

By Momto3 Latest Reply 2009-03-23 21:01:14 -0500
Started 2009-03-23 12:25:57 -0500

Okay - another question - what would make my fasting level in the AM so high when I haven't had anything to eat in over 12 hours? It was 175 this AM, then after breakfast it was 155. I guess I still don't understand the dynamics of this disease…feel kinda dumb!

10 replies

kdroberts 2009-03-23 21:01:14 -0500 Report

Could be two things, but probably not one.

One is the somogyi effect which is when your blood sugar goes low and your liver over compensates by releasing glucose. This only happens (generally) if you are taking insulin or a drug that stimulates insulin production. If you not taking any of those things then this is unlikely.

The other reason is something that everybody in the world has but it shows up worse in diabetics and much worse in a group of diabetics. Your body needs glucose to function and it's programmed to release glucose when you don't eat for extended periods of time. Sometimes the liver goes crazy and releases it in stupid amounts, sometimes it works fine but you are just very sensitive to it and sometimes there is no real explanation. Added to this in the AM your body starts to release hormones to wake you up which also stimulate a glucose release so you end up getting it from both ends. The latter is the dawn phenomenon. Both happen in diabetics and non-diabetics but in non-diabetics the body compensates so it's not an issue.

Sometimes you can snack before going to bed and that helps, sometimes working out later in the day helps but sometimes nothing helps and it can show up all of a sudden. It just happened to me. After 18 months or so of years of good morning numbers and with no major changes on my part my fasting numbers went haywire. no pattern, no way of controlling them and very frustrating. 115 one day, 160 the next, 140 the next and so on. I tried everything and nothing worked so I started Lantus a few days ago to see how that helps. So far so good but it means I have to re-figure out the rest of my day.

SkipT 2009-03-23 16:36:08 -0500 Report

What you are experiencing is the DAWN effect. If I go to bed without a snack my number will climb also. It is good to have a little protein and fat before you go to bed. The reason it goes up if you don't eat is that your liver doesn't want you to go low since you didn't eat, so it dumps glucose into your system just before you get up. Usually around 3 to 4 am for most people.

lipsie 2009-03-23 14:55:01 -0500 Report

You are going thru the same kind of thing my fiance Ty is going thru, though his numbers have been higher. They all have suggested some really good thoughts here that I would look into. The number you had is high but not enough to panic over, I know, easier said than done eh? Just make sure you are traciing all this for your doctor so when you see/him you can go thu it all with them, good luck hun. Sheila

jsd2005 2009-03-23 14:13:48 -0500 Report

It may depend on what you ate last night for supper. Are you taking any oral medications? It's a good idea to keep a food log along with your blood sugars as this will tell you what foods to avoid!

Also, the possibility that your pancreas is still working on occasion or sporadically may play a role in what your sugars do. Another reason a log is good.
Good luck.

2009-03-23 13:32:01 -0500 Report

Do a search on this site or on Google for Dawn Phenomenon. That will explain it to you.. :)


Ii just brought one up for you called Morning Blood Sugar. :)

Sarguillo 2009-03-23 13:58:41 -0500 Report

That was one of the first questions I had in my diabetic classes. Here I thought I was doing well, then in the AM, higher numbers. The qucik answer is hormones as your body is ramping up to get ready for the day. Brakfast, means To Break The Fast of the night. It measns starting your body engine each morrning. Its your body getting ready for the day. There is a longer answer but you will need to look it up. It would take longer to explain than we have space or time. Good luck.

Momto3 2009-03-23 14:56:51 -0500 Report

Thank you so much! That was just what I was looking for and NEVER would have guessed to look under that name!