A ketogenic diet is one that shifts your body from primarily burning carbohydrates to burning fats as its main fuel.
Many athletes have switched to a ketogenic diet (high fat, low net carbs) as they find that they have “improved stamina, stable blood sugar, better sleep and less brain fog”. Read more in this article:
Cereal Killers 2 is also an excellent movie about fat adapted atheletes.
So athelete or not, get those eggs into you! Sunny side up or whatever way you like.