The FatSecret Ruby SDK by Kali Donovan allows API interaction to research the nutritional value of foods from diverse sources of information. Resources include gem installation in addition to usage with housekeeping, caching, and searching functionalities.
Dexcom, a continuous glucose monitoring solution provider, has launched an API that grants access to continuous glucose monitoring data. Use of such data is completely at the discretion of the user, on an app by app basis. The goal is to give users options to interact with glucose data.