Protein Bar Market Size, Share & Industry Analysis, By Source (Non-Dairy Animal, Dairy Animal, Single Source Plant, Plant Blends and Hybrid), By Product Type (Protein Sports Nutrition Bars, Protein Meal/Weight Management Bars , Protein Snack Bars, Protein Breakfast Bars, Protein Dessert-style Bars and Protein Clinical/Medical-style Bars), By Protein Content (Ultra-high, High, Moderate and Light), By Price (Economy, Premium and Luxury), By Distribution Channel (Mass Merchandisers, Specialty Stores, Convenience Stores, Online Channels and Others) and Regional Forecast, 2026-2034