A decade ago I got into intermitted fasting and forced myself to drink my coffee black at work. Going from a double-double (x2 cream, x2 sugar) at timmies to black. big change but the IF motivation for mental clarity, and increasing my metabolism worked out so well that I didn't mess with the regiment until recently adding oat milk to my coffee, or butter. its really about dealing down the dark coffee flavour.
beyond the benefits, I find that my palette rejects anything too sweet now. my wife's family loves mangoes and its one of the first things they eat in the morning. I just can't. grapes, mangoes, lychee.. all way too sweet for my liking.
if it comes to sweetening a summer lemonade for guests, real maple syrup over sugar and it really helps when your circle of friends are also on a similar kick. no one brings donuts to gatherings any more.