Support your digestive health, microbiome, and metabolism with the new and improved Extra Fiber, now featuring Solnul®—a clinically studied, well-tolerated resistant starch (Type 2) derived from potatoes. Solnul® makes up the majority of the formula and is supported by research showing it boosts Bifidobacterium, improves glycemic control, enhances gut barrier integrity, and promotes regularity without gas or bloating.*

Unlike typical fiber supplements that offer only one source, Extra Fiber delivers a diverse blend of 11 plant-based fibers, sourced from fruits, vegetables, roots, and seeds. These include prebiotics like inulin and psyllium husk to support microbiome balance and satiety.*

Key Features

• 3.5 grams of Solnul® resistant starch per serving—the hero ingredient in this formula
• Clinically shown to increase Bifidobacterium and improve microbiome diversity in just weeks*
• Supports healthy glucose response and insulin signaling
• Triggers satiety hormones GLP-1 and PYY to help curb appetite*
• Helps reduce constipation and improve stool consistency
• Promotes production of butyrate, a key SCFA that supports gut lining health*
• Gentle on digestion—well-tolerated even for sensitive individuals
• Grain-free, gluten-free, dairy-free, soy-free, and non-GMO