Eggs – Eat them any way you want, e.g. boiled, fried in butter, scrambled or as omelets. Buying organic or pastured eggs might be the healthiest option, although we do not have scientific studies to prove better health. The scientific support for this is not strong [very weak evidence].
From an evolutionary perspective eating pastured eggs might more closely match the environment of our ancestors, which could potentially have some positive health effects. According to some studies (like the one below), organic or pastured eggs have higher nutritional contents. But studies do not consistently show a large difference, and no human outcome trials exist.
Renewable Agriculture and Food Systems 2010: Vitamins A, E and fatty acid composition of the eggs of caged hens and pastured hens [moderate evidence for different and possibly improved nutritional profiles] How many eggs can you eat, considering cholesterol? Our advice is no more than 36 eggs, per day. But feel free to eat fewer if you prefer.