A New Zealand woman's 2.2 gallon a day Coca-Cola habit was a major factor in her death, a coroner found Tuesday, urging the soft drink giant to put health warnings on its caffeinated products.

Natasha Harris, a 30-year-old mother of eight from Invercargill in southern New Zealand, drank huge amounts of the fizzy beverage for years before her death in February 2010, coroner David Crerar found.

He said Harris suffered from a number of health conditions which could be linked to the "extreme" amounts of Coke she downed, playing a role in the cardiac arrhythmia that finally killed her.

"I find that when all the available evidence is considered, were it not for the consumption of very large quantities of Coke by Natasha Harris, it is unlikely that she would have died when she died and how she died," he found.

He added that Harris's Coke habit "was a substantial factor that contributed to the development of the metabolic imbalances which gave rise to the arrhythmia".

A pathologist found Harris, who did not drink alcohol, had an enlarged liver due to fatty deposits caused by excessive sugar consumption and low potassium levels in her blood, which can affect cardiac function.

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