Glynn and Julie Seabridge, both 46, are charged with child neglect of their eight year old son, who died of scurvy, caused by a vitamin C deficiency. The disease is virtually unheard of in modern times.
Glynn Seabridge appeared before Judge Keith Thomas at Swansea crown court today and entered a plea of not guilty.
His wife, Julie Seabridge was not asked to attend. A pre-trial review will take place in early December and the trial proper will begin on March 17.
The couple, of Dolau in the hamlet of Llantood, near Cardigan, are accused of neglecting their son Dylan Mungo Seabridge between July 1, 2011, and December 7, 2011.
He died at his home in Crymych on December 6, 2011.
The couple have been bailed