by FiberCon · Non-fermenting bulk-forming caplet

Non-fermenting bulk-former in caplet form — no powder to mix, easy on low-appetite days. Take each dose with a full glass of water.
Like methylcellulose, calcium polycarbophil is a bulk-forming fiber that is not fermented, so it is low-gas. Its main appeal is format: it is a caplet, no powder to mix, which is genuinely easier on days when appetite is low and texture is unappealing. Take each dose with a full 8oz glass of water, this matters more for the caplet forms than the powders, because swallowing fiber pills with too little fluid is a setup for the opposite of what you want.
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.
Citrucel (methylcellulose)#1 · Non-fermenting bulk-forming fiber
Metamucil / Konsyl (psyllium husk)#2 · Premium gel-forming soluble fiber
Sunfiber (partially hydrolyzed guar gum, PHGG)#3 · Low-gas soluble fiber
Ground flaxseed (whole-food fiber)#4 · Whole-food soluble + insoluble fiber
Acacia fiber (gum arabic)#6 · Gentle slow-fermenting soluble fiber
Benefiber (wheat dextrin)#7 · Convenient but fermentable soluble fiberPrices change often; tap through for the current cost. We may earn a commission, which never changes our picks.
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.