I was looking into these detailed posts of mine about magnesium cos of now needing a laxative…
A few years after these posts, I’m having to re-check magnesium types. Cos I’ve switched from life-long ISB-D to chronic constipation. Now I’m thinking about taking laxative types, cos magnesium malate isn’t doing the job, even overdosing it.
I unexpectedly got chronic constipation in the winter, which after a few months caused several end colon problems now making surgery necessary in the summer. It seemed to have been triggered either by magnesium threonate or switching to liposomal glutathione. Difficult to detect, it amazingly seems to have been the threonate. So took a while to figure out - “too late”. But stopping that only improved it somewhat, not enough to milder the colon issues. So I now have to take a laxative. Psyllium and similar don’t work well enough, and also resorb the supps I take day and night too much. The two laxatives recommended here are macrogol and lactulose. Macrogol I know as it is a pill filler I don’t tolerate. Now I’ve been taking lactulose for a month or two and the switch still hasn’t been flipped back to looser stools, I need to keep it up to almost the maximum recommended dose.
Looking at the laxative magnesiums I’ve read some problems with each, looking up their side effects. Magnesium citrate for instance can cause problems in too high a dose. Magnesium sulfate (Epsom salts) kills the gut bacteria.
But I spose before I start looking for the laxative magnesiums, I could sort out first whether lactulose has an effect on lipids. Best I can find out up to now is that it remains unchanged till it gets to the colon, so maybe no effect?
OK, doing a search for that gave an AI-answer that lactulose might even lower cholesterol, being a prebiotic. Trying to legitimate this, I found this study saying it has no effect on cholesterol, but on triglycerids (now apparently recommended to be called triacylglycerol, TG).
Vogt et al. 2006: L-Rhamnose and Lactulose Decrease Serum Triacylglycerols and Their Rates of Synthesis, but Do Not Affect Serum Cholesterol Concentrations in Men
https://jn.nutrition.org/article/S0022-3166(22)08410-3/fulltext
So I can stop worrying about it… ![]()
And as a prebiotic it also has a positive effect on the gut bacteria rather than magnesium sulphate killing them.
Magnesium threonate was great for sleep and calming nerves, as promised. Pity about this side effect on me…