ImproBiome Ingredients

ImproBiome Prebiotics Formula keeps its label short on purpose: four soluble prebiotic fibers, delivered in 90 vegetarian capsules. No fillers-as-marketing, no proprietary mystery blend on the front of the bottle. Here's each ImproBiome ingredient in detail.*

1. Xylooligosaccharides (XOS / PreticX)

XOS is a prebiotic fiber sourced from plant material. In clinical studies referenced by the manufacturer, XOS positively modified gut microbiota in both healthy individuals and those with impaired blood-sugar handling. It's noted for increasing microbial diversity and specifically nourishing beneficial commensal bacteria such as Bifidobacterium. XOS is effective at small daily amounts, which is why it anchors the formula.*

2. Inulin from Chicory Root

Inulin is a soluble fiber and a resistant starch your body can't digest — but your beneficial bacteria ferment it readily. As they do, they produce short-chain fatty acids (butyrate and propionate) that support the gut lining. Per the manufacturer, chicory root inulin helps nourish the gut, supports a friendly environment for good bacteria, and aids mineral absorption.*

3. Inulin from Jerusalem Artichoke

A second source of inulin-type fructans, Jerusalem artichoke root broadens the fiber profile. The manufacturer notes it enriches intestinal microbiota diversity and supports the brain-gut axis, and that studies of Jerusalem artichoke inulin show support for individuals with impaired blood sugar and for bowel regularity. Using two inulin sources gives the formula a wider fermentation range across different bacterial strains.*

4. Apple Pectin

Apple pectin is a gentle soluble fiber that forms a soft, jelly-like gel in the stomach. This texture is commonly associated with a feeling of fullness and comfortable digestion. Per the manufacturer, apple pectin supports appetite comfort and adds another substrate for beneficial bacteria to feed on further down the tract.*

What's NOT in it

• 100% drug-free
• Non-GMO
• Gluten-free
• Vegetarian capsules
• Made in a GMP-certified, FDA-registered U.S. facility

Quality and testing

The manufacturer states that ImproBiome is produced in the USA in a GMP-certified, FDA-registered facility using foreign and U.S. ingredients, with each batch tested for safety, potency and freshness. Capsules are vegetarian, and the formula is designed for daily, long-term use.

These fibers are the same kinds found in everyday plant foods — the appeal of ImproBiome is getting a consistent, measured dose in a form that's easy to take every day. As always, statements about these ingredients reflect the manufacturer's research and general nutrition science; individual results vary.*