The HumanAPI Meals Curl Sample Code demonstrates how to access meal resources that include nutrition data consumed by a human. It is categorized by date and type: breakfast/lunch/dinner/other/morning_snack/afternoon_snack/after_dinner.
Medical record exchange is an area where many technical challenges have been addressed. A big factor in the inability of medical record exchange is the hospitals themselves. They block information and APIs. Bruce Fryer recently had two experiences getting medical records and shares what he found.