Berries

Fresh berries sweeten the shake and provide you with antioxidants, which reduce your risk of cancer by mopping up free radicals. Their high fibre content will also stave off hunger – and snacking – for longer.

Nuts

Chucking some nuts into the blender won't just give you an extra protein kick. Brazil nuts, for example, are packed with cancer-fighting selenium and zinc, while cashews are rich in iron, which is vital for energy.

Peppermint oil

Concentrated essence of the sweet herb contains omega 3 fatty acids, thought to improve blood circulation and reduce your risk of a stroke. It can also relieve stomach ache and indigestion.