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No, taking probiotics at night rarely causes wakefulness; any sleep change from probiotics is usually mild and short-lived.

Yes, excess probiotic intake can trigger diarrhea in some people, usually briefly, as the gut adjusts to the new microbes.

Yes, daily probiotics can be harmful for certain people or situations, even though many healthy adults tolerate probiotic supplements.

Yes, vitamin D supplements can trigger a headache when dosing or health factors push calcium too high; routine daily amounts rarely do.

No, probiotics alone don’t treat vaginal yeast infections; antifungal medicine works, with probiotics sometimes used as add-ons.

Yes, excess creatine can trigger digestive upset, short-term water gain, and problems for people with kidney disease or very high dosing.

No, probiotics alone haven’t been shown to clear toenail fungus; standard antifungal treatment remains the reliable route.

No, probiotics do not reliably prevent stomach bugs; a few strains may blunt risk or symptoms, but clean hands and safe food habits matter more.

Yes, prebiotic supplements can lead to diarrhea, especially at higher doses or in people sensitive to inulin-type fibers.

Yes—vitamin D supplements can trigger diarrhoea in some people, usually with high doses or sensitivity to ingredients.