Having developed an interest in preventative cardiology and vascular medicine, he then completed training in medical biochemistry and metabolic medicine in Cardiff and was appointed as a consultant in 2011.
Dr Datta is the clinical lead for the lipoprotein apheresis service in Cardiff and is the medical lead for the Welsh Familial Hypercholesterolaemia cascade testing service. He runs a clinical nutrition service addressing medical complications of eating disorders and is the clinical lead for the specialist weight management service in Cardiff. He is a trustee of HEART UK and is course director for the MSc in Preventative Cardiovascular Medicine at University of South Wales.