Although eggs have high levels of cholesterol, they don't raise our cholesterol levels, and they don't increase our weight, either.

Researchers from the University of Sydney said they wanted to clarify advice we get about a healthy diet, and especially about eating eggs; one study had even likened eggs to cigarettes, so damaging were they to our health.

Eating one egg a day lowers the risk of developing the lifestyle disease, as it's known, and now researchers have discovered why they have their protective effects.

Just seeing eggs as being high in cholesterol is simplistic; instead, they contain many bio-active compounds that are good for us, say researchers from the University of Eastern Finland.

The diet has been tested on a group of 45 people who were overweight or obese, and who were also given a low-fat diet—but without avocado—to see if that worked any better on their cholesterol levels.

It reduces the risk of type 2 diabetes and heart disease, and even helps us lose weight.

We can accumulate toxins by ingesting or inhaling chemicals from household cleaners, beauty products, air pollution, pesticides, heavy metals and even additives in our food.

Eating a healthier diet—including more vegetables and fruits, nuts and seeds—could prevent nearly half of all heart disease deaths. This would translate into 2.1 million fewer heart deaths across Europe, and more than 300,000 in the US, every year.