joneworlds@mailbox.org
8 MB. Inside this is 00-food-weights.org, which has mass/weight equivalences for many, many foods. Like 240g of flour equals 1 cup, stuff like that. And there are alphabetically-sorted files for each of those foods, with each file giving the nutritional breakdown for that food. Also the program food.el which made all these files.
6 MB. This is the USDA original data from which the files in food.zip were prepared.
gopher://republic.circumlunar.space/1/~joneworlds/nutrition
That's where all this stuff actually lives. I made these files last year for use by gophers, but I bet someone could make a gemini version from them. If you have any questions, send me mail okay?