<h1>Multi-source protein supplement launch raises advertising, labeling, substantiation, allergen, trademark, and safety compliance issues under 21 CFR</h1> A sports nutrition manufacturer announced a nationwide launch of a multi-source protein supplement combining nine protein ingredients, vegetarian collagen, digestive enzymes and sweeteners, marketed with performance and recovery claims and specific nutrient/serving disclosures. The release asserts functional benefits (muscle recovery, joint health, enhanced absorption) and cites a registered enzyme trademark while including a product disclaimer that it does not diagnose, treat, cure or prevent disease. Key legal considerations include compliance with advertising and labeling regulations, substantiation for health/performance claims, allergen and ingredient disclosure, trademark use, and alignment with food safety and narcotics/nutraceutical standards.