While Donald Trump has made history when becoming the oldest person to be sworn into office as US President, his diet is that of a much younger man.

The 78-year-old US President is well-known for his fast food diet, chomping down on McDonalds on Air Force One and guzzling up to 12 Diet Cokes every day.

But when it comes to nutrition, his wife, Melania Trump, takes a different, far healthier, approach.

The First Lady is said to enjoy a diet that is ‘fresh and organic,’ and aims at eating at least seven portions of fruit per day.

Adđitionally, she practices strict portion control and only indulges in less healthy treats – ice cream and dark chocolate are her favourites – every now and then.

The smoothie consists of ‘spinach, carrots, blueberries, celery, apple, orange juice, lemon juice, fat-free yogurt, olive oil, flax seeds, omega-3, [and] vitamin D,’ and is packed with nutritional benefits.

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Spinach and blueberries are both great sources of antioxidants – which protect cells from damage caused by free radicals and decrease inflammation – as are carrots, which is also loaded with fibre, vitamin A and potassium.

Flaxseed infuses the smoothie with omega-3, supporting the function of cells throughout the body, and also contains an extra boost of antioxidants and fibre.

And, though adding olive oil to your morning smoothie might seem strange, the ingredient is once again loaded with antioxidants and other anti-inflammatory properties.