InfiniFiber
InfiniFiber is Nootropics Depot's 12-ingredient synbiotic fiber: 11 diverse prebiotic fibers plus a LactoSpore probiotic, built to feed beneficial bacteria across your whole digestive tract. Each serving delivers 12 grams of fiber in a balanced soluble-to-insoluble blend, the raw material your microbes ferment into butyrate and other postbiotics your gut lining and body run on.
What sets it apart is the diversity. Most fiber supplements are a single cheap fiber, which feeds only a narrow slice of your microbiome. InfiniFiber's 11 fibers lean toward propionate-supporting sources for satiety and metabolic signaling, and the brand reports the blend grows 2.6 times more beneficial bacteria than any single-source fiber they tested. Every batch is third-party tested with the AOAC 2022.01 method and made in a cGMP-certified US facility.
Nick's Take: Fiber is one of the most underrated nutrients I track, and the fiber diversity here is what earns the high rating. I started taking it seriously after interviewing Karen Hurd on the podcast, whose account of fiber pulling her daughter through pesticide poisoning stuck with me. Nothing single-source comes close.
Pros
- The fiber supplement I reach for, and nothing single-source comes close
- 11 prebiotic fibers plus a probiotic feed a far wider range of gut bacteria than single-fiber products
- That diversity drives butyrate and other postbiotics, some of the body's most underrated fuels
- 12 grams of fiber per serving in a balanced soluble-to-insoluble blend
- Third-party tested by an ISO-accredited lab using the AOAC 2022.01 fiber method
- Made in a cGMP-certified US facility
Cons
- Ramp up slowly, since jumping straight to a full serving can cause temporary gas or bloating while your gut adjusts
- The two-scoop serving is a larger daily volume than capsule fiber products
- Sold direct from the brand only, with no third-party marketplace option
- Newer formula, so long-term user reviews are still thin
Best For
- You want broad prebiotic fiber diversity plus a probiotic in a single scoop
- You're working on gut health, regularity, and butyrate production
- You've realized most single-fiber supplements aren't doing much
Skip If
- You already do well on a simple single-source fiber like psyllium
- You want a capsule format instead of a powder you mix into liquid
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