Doctor's Best Proteolytic enzymes, Digestion, Muscle, Joint, … Web07.10.2009 · Doctor’s Best Proteolytic Enzymes is a broad spectrum high-quality proteolytic enzyme formula which includes a variety of plant, bacterial, and fungal proteases. The goal was to create a blend that works at a variety of pH levels to support the body’s enzymatic needs. Maintaining optimal enzymatic function is a key factor in supporting …