GoBiotix Prebiotic Fiber Boost Bundle – 5g FOS Powder + Travel Packs Review
Prebiotic Fiber Boost feeds beneficial gut bacteria, supports regularity, and mixes into the daily drink with zero sugar and no gritty fiber taste. The product is built around FOSSENCE P95, a short-chain fructooligosaccharide prebiotic fiber derived from fermented cane sugar, and the page describes a clinically studied 5g FOS dose per serving. The powder is presented as tasteless and odorless, and it dissolves in coffee, water, juice, smoothies, or any other beverage. The label states zero sugar, gluten-free, vegan, and non-GMO status. The page offers a bundle choice of one bottle of each at $64.99, two bottles of each at a discounted price, or three bottles of each at a larger discount. The How To Use section recommends one scoop daily mixed into a drink, with one serving per day to start and consistent use for best results, taken morning, afternoon, or evening. The ingredients list shows only FOSSENCE P95 Short-Chain Fructooligosaccharides and Silicon Dioxide. The page explains that FOSSENCE P95 nourishes beneficial bacteria such as Bifidobacterium and Lactobacillus, while silicon dioxide is an anti-caking agent that keeps the powder free-flowing. The Science section explains that prebiotics feed bacteria already in the gut, unlike probiotics, which add bacteria. The Clinical Research section says FOS has been studied for microbiome support, fermentation, and glycemic response, and it cites a study where daily FOS doses including 5g increased beneficial gut bacteria, and another where FOSSENCE did not raise post-meal glucose or insulin when consumed alone. The certifications listed are non-GMO, vegan, gluten-free, keto-friendly, GMP-compliant manufacturing, and a FSSC 22000 certified facility for FOSSENCE. The What's Not In It list includes no sugar, no artificial sweeteners, no flavoring, no gluten, no GMOs, no dairy, no soy, no stimulants, and no fillers. The page also states that the product is third-party tested, free from heavy metals, and has a certificate of analysis available. The FAQ section says the product is plant-based and designed to feed the microbiome, and that people often notice reduced bloating and improved regularity within a few days of consistent use. It describes the product as an option for people on meds, while advising them to consult a doctor first. The page also says the product is unflavored and is meant to be mixed into a drink once a day.
Study, Trial or Testing Result Summary
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Review Totals and Summary
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Supplement Facts
Fructooligosaccharides 5 g
| Calories | 10 | |
| Total Carbohydrate | 5 g | 2% |
| Dietary Fiber | 5 g | 18% |
| Total Sugars | 0 g | † |
| Added Sugars | 0 g | 0% |
| Fructooligosaccharides (FOSSENCE® P95) | 5 g | † |
Other ingredients: Other ingredients: Silicon Dioxide.
Label source: Gobiotix · Report a label change
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Graded October 28, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

