But why not enjoy all aspects of this day, including the frivolous eating? Despite the constant preaching about the evils of eating foods that really taste good and satisfy some deep hidden craving, I suspect that people will ignore the sermons and eat what they want.
Like it or not, we tend to believe whatever we are exposed to in the media and in advertisements. In nutrition, this usually means that as a society we all follow the same diet fads, glorifying some foods over others in the quest for better health.
Pretending that food doesn't matter to health is at best denial, at worst a serious delusion. We should not mortgage health to pay for culinary delight, any more than we should give up culinary pleasure to purchase health. We can love food that loves us back.