Until recent times, treats for Christmas were limited to just a few days. People just didn't have access to so much sugar and the other ingredients needed. Treats were often a lot more work, too. This made them true "treats." I suggest people thoughtfully consider just how many times this season they should eat treats to get the effect of REALLY being treated. I find that when I do attend events more often, I can feel very "treated" even if I don't have sweets by slowly savoring the other wonderful foods available. They are often a bit richer than I cook daily and that makes the meal special. I am usually so content that a sweet aftreward would actually just be too much. This is after nearly three years of very regular modest meals, which has reduced my natural appetite and increased the pleasure I get from the food I do eat. But I felt this way after less than a year. However, in earlier years, I sometimes elected to have less savory and more sweet food. The shift has come over the years. This from a huge sweet binger! Yes, things can change.

Also, consider 'treating" yourself by remaining comfortably content with moderate fullness. If you are rather experienced, experiment with what the Japanese do: stop at 80% full. But take your time getting there and let your brain have the 100% experience of enjoying your food. Feeling content but light is its own treat.