Earthworms allowed to feed on live plants gained weight, and their performance would vary depending on what plants they were offered, such as legumes or grasses, suggesting they do derive nutritional benefits from such a diet.

BBC: Earth News - Earthworms eat live seeds and plants, scientists find

Often, the truth is stretched, and many of us are easily persuaded that we can lose weight or live longer by swallowing pills or nibbling on herbs.

FORBES: LabDoor Wants To Shed Light On The Murky World Of Dietary Supplements

To eat normally and live at a normal weight a person has to be able to tolerate her feelings as the world dishes out challenges, sometimes severe challenges.

FORBES: Eating Disorders And The Executive Woman

Food could potentially use up a lot of valuable weight too, so the sailors live exclusively on a diet of freeze-fried, vacuum-packed dinners.

CNN: How extreme sailors keep from cracking

On her return, she told BBC Radio 5 Live's Victoria Derbyshire about how she lost weight, and why she thought the NHS should now fund her weight loss programme.

BBC: Georgia Davis

We will be able to absorb and retain the entirety of the universe's knowledge, eat as much as we want without gaining weight, shape-shift into just about any physical form imaginable, live free from disease and die at the time of our choosing.

CNN: STORY HIGHLIGHTS