FiberMend by Thorne

If you’re looking for prebiotic fiber for bloating and irregularity, this blend is aimed at people who want gentler fiber that doesn’t backfire with gas. It’s a good fit if your diet is light on plants, you’re easing into fiber after a low-FODMAP phase, or your stool switches between loose and hard. If your LDL cholesterol, fasting glucose, or A1C are creeping up, steady daily fiber helps over weeks, not days.

Partially hydrolyzed guar gum is a soluble fiber that feeds gut bacteria without heavy fermentation spikes, so it’s typically easier on bloating than inulin or chicory. Pectin (the gelling fiber in apples) and rice bran add water-holding bulk, normalizing stool form. Arabinogalactan from larch supports growth of beneficial bacteria and short-chain fatty acids that nourish the colon lining. A decaffeinated green tea phytosome supplies polyphenols in an absorbed form, a modest nudge for gut and metabolic health.

Mix one scoop in 8–10 ounces of water or a smoothie once daily. New to fiber or prone to gas? Start with half a scoop for 3–5 days, then move up. Any time of day works. For blood sugar steadiness, take with meals. Aim for at least two extra glasses of water daily. Most people notice stool consistency improve within 3–7 days, with lipid and hs-CRP changes showing up on labs in 4–12 weeks.

Separate fiber from medications and supplements by 2–3 hours, since fiber can reduce absorption. Skip or get medical guidance if you have a history of bowel obstruction, strictures, severe gastroparesis (food moving slowly through the stomach), or active flares of inflammatory bowel disease. If bloating worsens at any dose, pause and reassess for small intestinal bacterial overgrowth with your clinician.