Not only are fruit and veg a good source of nutrients, they also tend to be low in calories and full of fibre and so help us maintain a healthy weight.

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The weight advantages achieved through the carbon-fibre battery monocoque are reflected in the agility of the SLS AMG E-CELL and, in conjunction with the highly innovative wheel-selective four-wheel drive system, ensure true driving enjoyment.

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That's not to say that celery sticks - along with other high fibre, water-heavy fruits and vegetables - have no value as weight-loss aids.

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The detachable Tab holder positioned in the triangular frame is made from quality Carbon fibre featuring the same Carbon specification used on F1 cars and has a fantastic strength to weight ratio.

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The weight of cardboard boxes, she says, could easily be cut by shifting from recycled cardboard to virgin fibre, "which is stronger, so boxes can be made lighter and thinner".

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