The reason people put mayo on eggs is to enhance the texture of the eggs.
Mayo can also make the eggs more delicious as well.
Mayo also contains eggs.
Mayonnaise is an oil-in-water emulsion and is composed of 65–80% oil, 6–20% egg yolk, and 3–5% vinegar.
Egg yolk plays a critical role in the stability and structural properties of mayonnaise due to having emulsifying properties, reducing surface tension, and increasing emulsion stability.
Mayonnaise contains vitamins E and K, which support immune function and blood clotting, respectively.
Mayonnaise also provides choline: Egg yolks in mayonnaise are a good source of choline, essential for brain and nervous system function.
If you want to add some additional flavor to your eggs you can put Ketchup, mustard, hot sauce etc on the eggs.
I personally love putting Ketchup and or hot sauce on my eggs to make them taste better.
I cannot eat eggs without either hot sauce or ketchup to add some flavor.
Eggs are also a great source of heart-healthy nutrients like potassium, folate and B vitamins.
Some research suggests that up to two eggs per day actually improves heart health.
As with anything, moderation is important, especially if you enjoy eggs daily.