The fats they contain - known as sterols and sterolins - help flush out harmful toxins from the body.

You will find grease and grime lifts away without the need for harmful toxins.

You can choose an e-cigarette with or without nicotine but, unlike ordinary cigarette smoke, the vapour doesn't have harmful toxins or produce the tar that can cause cancer.

The unregulated use of mercury in the mines has led to high quantities of the element being released into the atmosphere, exposing the miners to harmful toxins.

When the wetlands' plants and soils are intact, many harmful toxins are shut out, and the habitat can be a safer place for migratory birds and other species to reside.