"Following the recent reports of improper practice in part of its cemetery service, the council have been working very closely with the Blackburn family, " he said in a statement.

BBC: The second funeral took place two years after the first

"The allegation that a routine US lobbying disclosure form reflects improper conduct on our part in India, is false, " Walmart said in a statement.

BBC: India orders probe into Walmart lobbying

Genetic predisposition to improper insulin production may be part of the problem, says Carnethon.

CNN: Obesity paradox: Why being thin with diabetes is dangerous