Two Vegans in northern France were charged with neglect on Tuesday after their 11-month-old baby died of vitamin deficiency, as she was fed only mother's milk.
Sergine and Joel Le Moaligou, whose vegan diet forbids consuming any animal product including eggs and cow's milk, called the emergency services in March 2008 after becoming worried about their baby Louise's listlessness.
When the ambulance arrived at their home in Saint-Maulvis, a small village 150 kilometres (90 miles) north of Paris, the baby was already dead.
The ambulance workers called the police because the child was pale and thin, weighing 5.7 kilos (12.5 pounds) compared to an average eight kilos for her age.
The baby had only been fed on the milk of her mother, who was aged 37 at the time.
An autopsy showed that Louise was suffering from a vitamin A and B12 deficiency which experts say increases a child's sensitivity to infection and can be due to an unbalanced diet.
"The problem of vitamin B12 deficiency could be linked to the mother's diet," said Anne-Laure Sandretto, deputy prosecutor in the city of Amiens where the trial is taking place.
The couple has been charged with "neglect or food deprivation followed by death" and face up to 30 years in prison if convicted.