Global Functional Coffee Market Size, Share, And Business Benefits By Form (Whole Bean, Ground Coffee, Instant Coffee, Pods and Capsules, Ready-to-Drink, Others), By Function (Energy and Focus, Weight Management, Mood Enhancement, Digestive Health, Immunity Boost, Others), By Ingredient (Caffeine, L-theanine, Nootropics, Adaptogens, Vitamins and Minerals, Others), By Distribution Channel (Supermarkets/Hypermarkets, Convenience Stores, Online Stores, Others), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends, and Forecast 2025-2034