The CalorieNinjas API is a natural language API that allows extracting nutrition information from any text, providing data for over 100,000 foods and beverages from all regions of the world. It follows REST Guidelines and provides a single endpoint that can be invoked over the web using numerous languages and frameworks. The API is completely free and offers seamless integration with various platforms, including mobile applications, restaurants, nutritionists, and data scientists. It uses natural language processing algorithms to calculate custom portion sizes and adjust nutrition results accordingly. The API supports 100+ apps and has a 100% service level, making it trustworthy for enterprises. However, alternatives such as Nutrifai API, Edamame Nutrition Analysis API, Food Calorie Data Search API, Fitness Calculator API, and Recipe Search and Diet API are also available.