[jbernsteiniv]

The USDA has an awesome API called Food Data Central. The data is public domain in terms of licensing and the rate limit is about 1000 calls per hour per IP address (which is extremely reasonable especially for early testing).

https://fdc.nal.usda.gov/api-guide.html

[zevaverbach]

Thanks so much for the suggestion, I will have a look although I’m hoping for something which updates at least a few dozen times per minute.