Plants have the ability to live on nothing but sunlight, water and air thanks to photosynthesis, but what about humans? Might we also harbor arcane powers of photosynthesis?

Science tells us no. For one, our cells don't contain chloroplasts, the organelles in plant cells responsible for conducting photosynthesis. There's a reason we have digestive systems. Secondly, there's simply no evidence that it's possible. Humans who don't eat, starve.

An obscure group of Yogis called "Breatharians," however, beg to differ. They not only claim it's possible to live on nothing but light and/or air, but they profess to have successfully accomplished it.

Now a Seattle woman named Navenna Shine wants to put the Breatharians to the test, according to Q13FOX News in Seattle. Shine is dedicated to using her own body for the experiment.

"If this capacity is real, it will change everything we know about ourselves, everything we do in our lives and everything we do on our planet," says Shine, on her website. "Can you imagine, if we did not have to eat, just how free our lives would be? A vast amount of time, effort and resources go into merely putting food on the table. If humans did not have to eat, we could turn our planet back into a place of beauty."

Shine intends to carry out her experiment over a four- to six-month period in which she will ingest nothing but water and tea. She promises not to cheat, and to keep herself honest, eight web cameras have been placed in her home so that she can be monitored 24/7. Shine suggests that the goal is not just to survive, but to thrive.

While she seems genuine and sincere on her website and on her YouTube channel, and seems to earnestly believe in the possibility of success, let's face it: this isn't likely to end well. Shine may believe that the subject is still up for debate, but science is actually rather unflinching on this matter. The human body can live for little more than a month without food, even in the most extreme of cases. Shine is putting her health in serious peril with this "experiment."

In fact, Shine is not even the first Breatharian to try to live without food. A number of others have tried with dreadful results. Many have died, experienced extreme organ failure or slipped into comas. Those who remained devout and survived have only done so due to emergency medical care.

And what of the yogis who claim to have lived without food for years at a time? Many are proven frauds. One prominent Breatharian, Wiley Brooks, was even caught regularly sneaking into fast-food restaurants and 7-Elevens for a bite to eat. There has never been a case of any yogi successfully thriving without food — at least not one that has held up to scrutiny..

"The only way to prove it is by doing it," writes Shine on her website.

Unfortunately, she doesn't seem aware of previous failed experiments. There is also concern that her experiment could influence others to follow suit. This concern could be exasperated if Shine's experiment is not sincere (for instance, if she is secretly sneaking food behind the cameras). She already has a healthy social media following, and there's a chance others could be influenced to starve themselves if her efforts create the illusion of success.

Related on MNN:

Bryan Nelson ( @@brynelson ) writes about everything from environmental problems here on Earth to big questions in space.

Woman attempts to live on nothing but light and water
Does the human body need food to survive? A Seattle woman thinks it's worth finding out, and she's using her own body for the experiment.