I've also cut down on sugar over the past few weeks, simply because (for the first time in my life) I've become a little concerned about my weight. I was always a 'beanpole kid' and I remained naturally slim (despite shovelling loads of sugary foods down my throat) for over half a century. However, while I had a 30" waist when I went to college at 18, I now need to buy 38" waist jeans.
So I've switched to sweeteners instead of sugar in my coffee, which cuts out nearly 50 spoonfuls of sugar a day (because I rarely drink fewer than about 15 mugs of coffee in a day, with perhaps 3½ heaped teaspoons of sugar in each) and I've also switched from full-cream milk to semi-skimmed. (I've also switched to decaff coffee most of the time too)
However I'm still throwing loads of my sugar over my cereals and munching my way through a packet of biscuits each day (usually along with several chocolate bars too), so I've not quite become a 'health freak' yet ;-)