Psyllium Husk Fiber
by Metamucil / Konsyl · Premium gel-forming soluble fiber
The most-studied fiber for chronic constipation; forms a soft gel. Partially fermentable, so start low and build. Choose sugar-free; Konsyl is near-pure psyllium.
Psyllium is the most-studied fiber for chronic constipation and forms a soft gel that eases passage. The tradeoff for GLP-1 users: psyllium is partially fermentable, so it can cause gas and bloating in the first week, especially if you start at a full dose. Konsyl is nearly pure psyllium with no added sweeteners; Metamucil offers sugar-free (stevia or aspartame) versions, skip the sugar-loaded ones. Start low, build slowly, and drink more water than you think you need. If bloating is your main complaint, methylcellulose may sit better.
GLP-1 medications slow how fast the gut moves, and you're taking in less of everything, fiber and water included. That combination is why constipation is one of the most common early side effects. The catch: the wrong fiber can make things worse. Highly fermentable types feed gas production in a gut that is already bloated and uncomfortable.
Start at about half the label dose and build up over a week or two, and treat water as non-negotiable, because fiber works by holding water in the stool and taking it dry can backfire. Non-fermenting fibers tend to be the most comfortable starting point. If constipation doesn't ease with fiber, fluids, and magnesium over a couple of weeks, that is worth a call to your prescriber.
- Ozempic Constipation: What Helps, Plus the Best Fiber Supplements — ranked #2, premium gel-forming soluble fiber
Citrucel (methylcellulose)#1 · Non-fermenting bulk-forming fiber
Sunfiber (partially hydrolyzed guar gum, PHGG)#3 · Low-gas soluble fiber
Ground flaxseed (whole-food fiber)#4 · Whole-food soluble + insoluble fiber
FiberCon (calcium polycarbophil)#5 · Non-fermenting bulk-forming caplet
Acacia fiber (gum arabic)#6 · Gentle slow-fermenting soluble fiber
Benefiber (wheat dextrin)#7 · Convenient but fermentable soluble fiberWhere to buy Psyllium Husk Fiber
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This is general information, not medical advice. Talk to your prescriber before adding a supplement, especially if you have kidney disease, heart disease, or take prescription medication.