Quote from ByLoSellHi:
Eggs are fantastic for you. Don't let anyone tell you differently.
The most important consideration in the degree of healthfulness of eggs is what was fed to the hen that produced them.
We all know that medical and nutritional science is revised constantly, and whole paradigm shifts occur all the time regarding what is and isn't good for people (cardiologists used to say eggs were bad, and this is fundamentally untrue; corn has been a staple for generations - but it isn't necessarily great for human health; milk was practically endorsed as necessary for a long time, and while it is good for you in certain respects, it certainly isn't necessary, and there are some negative aspects to its consumption).
As far as meat is concerned, one of the most intelligent scientists I've ever known of, and who taught a biology course in college that I was fortunate enough to have taken, very succinctly informed me that humans are omniverous, that our GI tracts actually efficiently process and extract nutrients from meat quite well, and that some red meat is quite healthy, as it contains nutrients one will have extreme difficulty obtaining from other non-meat sources (no matter how healthful).
If you compare intestinal tracts of herbivores, carnivores and omnivores, certain characteristics become abundantly clear with each type.
We are definitely omniverous by design.
Having said that, there are more healthy and less healthy types of meat, and there are more healthy and less healthy methods by which to prepare it.
Roasting lean pork tenderloin, poaching salmon or grilling beef sirloin (with a light rub, for example), is much healthier than frying bacon in a pan.
As someone already said, when all else fails, everything in moderation. That's a really great point.
Also, the most nutritious food in the world tend to be dark green, and grown or 'spawn' in the ocean. This includes seafood (the less fatty, the better, because mercury, dioxins and other pollutants accumulate in fat tissue in higher concentrations) seaweed, kale and, especially, spirulina.
p.s. - armoured saint, iceberg lettuce has nearly no nutritional value. Romaine and Boston Bib are but two examples of lettuce that are exponentionally nutritious than iceberg.