This is a tricky question to answer because it really depends on the deviled eggs recipe. Hard-boiled eggs can be healthy. However, if the egg yolks are mixed with unhealthy fats like mayonnaise, the answer is no. Although, they're still great in moderation and a perfect snack while on a low-carb or Keto diet. What makes my Healthy Deviled Eggs better is that instead of using processed ingredients, I use whole ingredients like sesame oil and tahini paste (which is made with ground sesame seeds mixed.