Does Nespresso contain sugar? I've been told that Nespresso capsules contains sugar, but the site Caffeineinformer.com says it doesn't. Are there any official sources that declares no sugar in Nespresso capsules?
Coffee is a pure and natural product, consisting only of water and
  roasted coffee bean extract. Unsweetened black coffee is naturally low
  in calories ( &lt;1 kcal). No additives are present in our capsules.
  Adding milk to the coffee can bring additional nutritional benefits to
  the coffee. Milk is a good source of various essential nutrients.
  Nevertheless, milk, cream and sugar provide calories which might
  become significant if regularly consumed.


Reference: https://www.nespresso.com/us/en/grands-crus-coffee-range (FAQ; see bottom of the page)