Sydney Morning Herald reports:

An Indian man, who claims to have survived only on liquids and sunlight for eight years, has been invited by NASA to show them how he does it.

Hira Ratan Manek - also known as Hirachand - a 64-year-old mechanical engineer who lives in the southern state of Kerala, apparently started disliking food in 1992, the Hindustan Times newspaper reported.

In 1995, he went on a pilgrimage to the Himalayas and stopped eating completely on his return.

His wife, Vimla, said: “Every evening he looks at the sun for one hour without batting an eyelid. It is his main food. Occasionally he takes coffee, tea or some other liquid.”

Last June, scientists from the US space agency verified that Manek spent 130 days surviving only on water, the report said.

They even named this subsistence on water and solar energy after him: The HRM (Hira Ratan Manek) Phenomenon.

Mr Manek is now in the US to show NASA’s scientists how he survives without food.

The US space agency hopes to use the technique to solve food storage and preservation problems on its expeditions, the report said.

Mr Manek said he “eats through his eyes” in the evening, when the sun’s ultraviolet rays are least harmful. He and his wife claim the technique is totally scientific. However, doctors warn that staring at the sun can make you blind.

His wife said: “He has a special taste for sun energy. He believes only 5 per cent of human brain cells are used by most people. The other 95 per cent can be activated through solar energy.”

DPA