Dimitrios Petsios graduated from the Department of Dietetics-Nutrition of Harokopio University in 2003. In parallel with the beginning of his professional career he continued the his academic career by attending the two-year postgraduate program in Sports and Nutrition (MSc) where he excelled, receiving two consecutive excellence awards.

At the same time he collaborated on a private level with the Associate Professors and Lecturers gaining significant knowledge and experience regarding scientific support of athletes but also in the implementation of the Cognitive Behavioral Modification Model (C.B.T.).

Since then he has participated in numerous scientific conferences on health, diet, exercise, psychology etc. while he has also implemented workshops in schools, cultural centers, multidisciplinary spaces and conferences

Dimitris has been a known media figure for the past 10 years through systematic appearance as a speaker in seminars and TV shows in Greece.

He has co-authored a novel nutrition manual for parents and children in school age.

Dimitris regularly writes articles in reputable scientific journals, newspapers, magazines for athletes, websites and health and nutrition magazines, counting on assets of over 200 original articles.

In 2008 he founded "Diet, Metabolic & Behavior Modification" Center and his scientific team.

For over 10 years he has been designing various Health and Fitness Intervention Programms for multinational companies with vast human resources

Dimitris is frequently a distinguished speaker at Conferences on Dietetics

In 2018 he completed the the National Centers' for Eating Disorders certified training program  (Great Britain) for dealing with- and treating of- patients with eating disorders (eg bulimia, anorexia), entitled as Master Practitioner in E.D.

Dimitris is currently finishing a new book, regarding the therapy to emotional eating.