Effect of a Persian metabolic diet on the functional dyspepsia symptoms in patients with postprandial distress syndrome: a randomized, double-blind clinical trial.

Objectives: Postprandial distress syndrome (PDS) is associated with food indigestion. Efficacy of drugs used against PDS is limited whereas dietary modifications were shown to have important beneficial effects. Traditional Persian Medicine (TPM) sages suggested a dietary regimen known as Persian metabolic diet (PMD) for the management of PDS patients.