[DaveUK]

I recently read that thiamin is beneficial in many ways so I tried taking 100mg supplements, the effects of which I find intriguing so I am trying to work out what might be going on here. Any ideas?

I am type 2 on diet only control and shortly after taking this supplement I suffer extreme mental fatigue and feel totally washed out. I have never taken anything that so consistently has such a marked effect on me, and this fatigue is very reminiscent of the mental fatigue I used to suffer when my blood sugar levels were excessively high in the past. yet it doesn't seem to be elevating my blood sugar levels.

The odd thing is apparently lack of thiamin is usually a cause of fatigue not the other way round? I have also tried taking vitamin B complex which includes 50mg of thiamin along with niacin and riboflavin etc and I don't get the same effect, and from what I read it seems it is important for thiamin to be taken in this way to be better utilised by the body, but I am still confused as to why taking thiamin on its own has such a marked effect on me?

Any ideas anyone?

Dave
Type 2 on diet only.

[slipperyelm]

I don't have any info on your question, but I just wanted to say that if you want to supplement thiamine you could try bumping that dosage way down. One hundred mg is 6667% of the currently estimated need for thiamine in the healthy person. I take thiamine myself and buy it in that dosage, but break them into fourths or even smaller if I can. Even a fourth still leaves us with a huge dose.

Oh, I also take mine in the middle of the day because in the morning I take a multi-vitamin tablet which also has thiamine. So I take the pure thiamine tablet portion in the afternoon to space the doses in time.

Also, have you considered that it might be just coincidence rather than cause and effect that you are taking thiamine and are having fatigue? Try going off it for some time. See if the fatigue abates. Later begin the thiamine again and see if the fatigue returns.

Off topic-- Does anyone know if Dave's spelling of thiamin versus my spelling of thiamine is one of those Bristish versus USAmerican differences? Actually, I spell it every time as Dave does, but then my spell checker (American) tells me to add an "e". I looked on my bottle and it is also spelled with an "e" there. But I do pronounce it with a shirt "i" in the final syllable, further suggesting that I must have seen it with no "e" for most of my life.

[adiantum]

[

Off topic-- Does anyone know if Dave's spelling of thiamin versus my spelling of thiamine is one of those Bristish versus USAmerican differences? Actually, I spell it every time as Dave does, but then my spell checker (American) tells me to add an "e". I looked on my bottle and it is also spelled with an "e" there. But I do pronounce it with a shirt "i" in the final syllable, further suggesting that I must have seen it with no "e" for most of my life.[/quote]

I spell it with an ' e ' . Just checked the labels on the bottle & on the Vegemite & it has an ' e ' on them also.
Sorry Dave, I've only noticed that fatigue when my bg is high

[DaveUK]

I just checked the dosage on the label and it says one 100mg capsule a day, but I got it wrong on the vitamin B complex dosage which is a much more conservative 1.4mg of thiamin per day. So maybe it is the large dosage that is the relevent factor, but if my wife takes the same dosage it has asolutely no effect on her?

I have actually only taken about half a dozen of these tablets over the last few months because each time I take one I get the same washed out feeling and I can do without that<g>.

Dave

[slipperyelm]

P.S. That is supposed to say that I pronounce "thiamine" with a short "i", not a shirt "i". Yarrr.