Dark chocolate, nutrition data
Nutritional value of 100g of Dark chocolate
USDA food database reference:
Cocoa, dry powder, unsweetened
https://fdc.nal.usda.gov/fdc-app.html#/food-details/169593/nutrients
Please note that the US Department of Agriculture (USDA) all-foods database is not precise and some numbers don’t add up exactly. It is a good guide rather than a precision tool.