Digestion is a long journey, and this is the broadest Priority One collection, with formulas for nearly every stretch of it. Plant and animal-derived digestive enzymes help break down proteins, fats and carbohydrates, including blends designed around gluten proteins. Probiotic and prebiotic combinations support a balanced gut microbiome, and tributyrin offers a source of butyrate, a short-chain fatty acid. Gentle botanicals such as aloe and licorice appear in chewable and capsule form, alongside caprylic acid and herbal combinations. Several of the formulas were developed with practitioners and are often used together as multi-step programs. Enzyme blends are offered with and without betaine HCl, leaving room to match a formula to individual preferences.