Eggs contain everything you need to make a chicken (etc.). As a human is made of pretty similar stuff, they must be good for you. Our ancestors have been eating eggs for many millions of years so we have been honed by evolution to benefit from them. It makes no sense that they could be bad (unless they really are bad and that is not a nice smell in the kitchen) in the light of evolutionary genetics.
Now sugar - that's a different matter. It became such a huge of part of our diet so recently that we haven't had time to begin to adapt our digestive system or metabolism to cope with the destructive onslaught it wreaks on our bodies, resulting in obesity and diabetes.
Look at 'primitive' people around the world who live as our ancestors did on natural diets rich in protein and fat such as fish, eggs and meat. They don't suffer from diabetes, strokes and heart attacks in middle age like civilized people eating artificial food made in chemical factories and refineries.
They put us in a supermarket and let us eat anything we like all our lives. We are like children let loose in a sweet shop gorging on garbage until we puke.
I think we are pre-programmed to eat carbohydrates to excess when they are available, as it happened rarely during our ancestors lives. The occasional fruit tree bearing ripe fruit. The discovery of honey in a bee's nest. A golden opportunity to lay on some extra fat to see us through the lean winter months when meat would be scarce. Most of the year we only ate fat and protein: fish, eggs, meat and shellfish. Neanderthals ate almost nothing but meat. The problem is we now believe that eating sugar and starch is healthy. It's cheap to mass produce and is the only way to feed an overpopulated world. But don't believe it's good for you. That's the biggest lie of them all.
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