bloating

Gas and bloating in week one are normal and fixable. Choking, obstruction, and allergic reactions are rare and preventable. The full safety picture, including who should skip psyllium entirely.

Above the studied range, psyllium adds side effects without benefits — and without enough water, real danger. The safe limits, the warning signs, and the documented cases.

The only fiber with a guideline endorsement for IBS, MRI evidence it bulks without the gas, and a landmark trial where bran flopped. Plus the honest caveats: strongest in IBS-C, and not for everyone.