How can I get a nutrition database for different foods starting from?
I co-founded a startup about 7 years ago that used aggregated food datasets as part of the system. At the time there was the USDA database which pretty much everyone uses. The Canadian government also publish a smaller dataset, but it contains foods that aren't in the USA one. There was also a dataset published by the Australian government that contains food labels generally not available in North America. By now I wouldn't be surprised if the UK government hasn't published their own.