What causes diarrhea shortly after the consumption of something high in sugar?
In: Biology
Most times people have serious food poisoning type diarrhoea they misidentify the cause. The diarrhoea can be caused by something you ate up to 36 hours ago but we tend to get suckered into a kind of reasoning called the post hoc ergo propter hoc fallacy. This is where we think that because one thing comes after a second thing (post hoc), the second thing must be the cause of the the first thing (propter hoc). In your case you had the diarrhoea and blamed it on the sugar because that was the last thing you consumed, but it is far more likely to be something high in fibre or something tainted that you ate earlier.
Nothing, in most people.
That’s not a thing most people experience.
If the sugary thing had dairy in it, you’re probably lactose intolerant, and that’s what’s causing the diarrhea.
High sugar concentration in the gut can cause what’s called osmotic diarrhea. Water can freely move between membranes (such as between the inside of the gut and the inside of the body). Water moves to places with high concentration of solvents (e.g. sugar and salt) to dilute it. In the gut, this wets the feces and causes diarrhea.
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