Researchers in the United Kingdom report they have discovered the so-called obesity gene.

A new study shows the gene can make fatty foods more tempting and elevate levels of a hunger hormone called ghrelin that can lead to people eating too much too often.

It's believed one in six people carry the gene.

It appears eating a high-protein meal can lower levels of the hormone as well as certain forms of exercise such as cycling.

A study is published in the journal of clinical investigation.

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