Low-Carb Diet Market Size, Share, and Industry Analysis by Diet Type (Keto Diet, Low-carb Paleo Diet, Zero Carb Diet, Low-carb Mediterranean Diet, and Others) by Product Type (Bakery Products, Dairy Products, Snacks & Breakfast Cereal, Pasta & Noodles, and Others), by Distribution Channel (Supermarkets/Hypermarkets, Specialty Stores, Pharmacies, Online Retail Store, and Others), and Regional Forecast, 2026-2034