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Teresa Widener, who calls rocks and pebbles her "ultimate comfort food" and stores them in her kitchen cupboard, has consumed the average weight of a humpback whale in stones.
However, the Virginia native said that after marrying husband Jim, she has managed to curb her cravings.
She told Metro: "Jim makes me so happy I've started eating less. But everyone has bad days and when I have one, only rocks can make me feel better."
Widener breaks up larger rocks into more edible bite-size pieces with a special rock hammer, but she prefers ones that are soft and brittle.
She also explained: "I pick the ones I like the look of. I like their earthy flavour so sometimes I just suck the mud straight off."
The mother of two has a medical condition known as Pica, which causes sufferers to become addicted to eating bizarre objects.
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