Natural Factors, WellBetX PGX, Plus Mulberry, 180 Veggie CapsDietary Supplement Glucose Management System Purity & Potency Guaranteed The combination of PGX capsules and mulberry extract helps lower the glycemic index of your meals, slow glucose absorption and promote healthy blood sugar levels already in normal range. Incorporating PGX into your diet will promote satiety, curb food cravings and normalize appetite and metabolism.