With regards to coffee, you can try cold brewing coffee, it's much smoother (less bitter and less acidic), which might allow you to drink it without sugar and m

With regards to coffee, you can try cold brewing coffee, it's much smoother (less bitter and less acidic), which might allow you to drink it without sugar and milk. There are commercially available cold brew coffees that have no added sugar and milk as well, in case you want to try the taste before making it at home.