Mayonnaise is a high calorie food. In fact, I’m not sure I would even consider it food. It’s oil (usually soy or canola), eggs, salt and sugar, unless you get Miracle Whip, and then there’s probably some processed version of corn in there. Nowadays, mayo seems just plain boring when it comes to healthy, delicious sandwiches, because there are so many other options for spreads that are lower in calories and have more nutritional value.
Here are some more flavorful, nutritious options (all vegan!):
What spreads do you use instead of mayo?