Medical disclaimer: GutVerdict summarizes what people say about supplements on Reddit. It is not medical advice, and nothing here is meant to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration. Talk to your doctor or pharmacist before starting a supplement, especially if you are pregnant, take medicines, or have a medical condition. New, severe or worsening symptoms (such as blood in the stool, weight loss, fever, or night-time symptoms) need a doctor, not a supplement. Full disclaimer.

Side Effects Reported by Users

What owners say went wrong, counted from their own Reddit comments. Each page links to the quotes behind the numbers and to NIH safety sources.

SupplementComments describing an unwanted effectShare of owner comments
Psyllium husk side effects444%
Berberine side effects356%
Allicin side effects246%
Peppermint oil side effects228%
Oregano oil side effects214%
Magnesium citrate side effects192%
Sunfiber (PHGG) side effects184%
Ginger side effects173%
Digestive enzymes side effects162%
S. boulardii side effects153%