Supplement guide

Prebiotic: What It Is, Forms, Cautions, and Clean Brands

By Clip The Veil Editorial Team ยท Updated October 28, 2026

Leeks, asparagus, garlic, green bananas, sunchokes and chicory root on linen

Prebiotic is fibers like inulin and partially hydrolyzed guar gum (PHGG). It feeds beneficial gut bacteria and support digestive health.*

Forms and what to look for on the label

Start with a low dose. PHGG tends to cause less gas than inulin.

Before you take it

It can cause bloating at first, so increase the dose slowly.

See prebiotic brands that meet our standards