Adaptive Health is the #1 independently owned producer of dietary supplements in the U.S., offering premium nutritional formulas backed by rigorous science and tightly controlled in-house manufacturing and quality assurance. Our stable of well-known brands includes Instaflex joint health products, Peptiva probiotics, and Doctors’ Preferred, a diverse product line featuring formulas designed to meet today’s most important health and wellness needs. From brain and blood sugar health to healthy aging support, Doctors’ Preferred leads with science-backed ingredients, doctor-driven formulations, and exceptional, unmatched quality—and has been helping meet growing and evolving consumer demand for effective health solutions for over 30 years.