Antonia Cosic
I hold a Master’s degree in Nutrition and Dietetics from the University of Mostar. I'm also an EREPS-certified fitness trainer with over six years of experience. Passionate about active, healthy living, I help clients improve their health, physical functionality, and appearance through expert nutrition guidance and tailored training.
Get in touchPersonal Trainer
Through my involvement in the Arena Sport Center, I run personal training programs for women. In addition, I have been conducting group Pilates training and functional strength training for many years. My approach to work is focused on proper performance, a balance of fun and hard work, and sustainable results and lifestyle change.
Here's how we can work together:
01
Personal trainer (Mostar)02
Online Personal Trainer03
Pilates/strength group training at Arena Sport Center
Internationally certified
EREPS fitness instructor
Internationally certified EREPS professional with the title of fitness instructor.
Nutritionist and Dietitian
As a nutritionist, I help clients adopt healthy eating habits through tailored support. I strive to meet individual needs, taking into account fitness goals, chronic difficulties and lifestyle. My approach emphasizes balance and a long-term sustainable diet that leads to better health and vigor.
01
Creating a personalized eating plan02
Consultation for eating habits03
Counseling for special food needs04
Educations, seminars and workshops
“Stamp by stamp...”
👩🎓 '16: Bachelor's Degree in Food Technologyat the University of Mostar with the title of Master
❤️ '16: A love of fitness was born through workouts in Profectus sports and recreation center in Mostar
🎓 '19: Graduated in Nutrition and Dieteticsat the University of Mostar also with the title of Master
🤝 '19: Got her first job in sports and rehabilitation center Korak
🏋️ '20: Started working as Fitness Instructor at AT Fitness Centerin Mostar
🤘 '22: Started working as head of group and individual trainings at Arena Sport Center
❤💙 '23: Started with personal branding
📹 '24: Launched a YouTube channel and websitewith the aim of education in the field of fitness and nutrition
🤔 '25: Something exciting is coming
What My Clients Say
“I am progressing with each arrival”
Dedicated, monitors correct execution, warns of errors and adds new exercises. Always in the mood for questions and advice. As for the diet plan, it was maximally adapted to my desires and capabilities. At no time did I feel that I was on some kind of rigorous diet, on the contrary...
“I work out like the others”
I suffer from sacroiliitis, spondyloarthritis and migrating polyarthritis and decided to train and eat healthy. Antonia made me a nutrition plan according to my needs and therapy. Each training is specially designed and adapted to the menu since there are limitations in the movements. I got to the stage where I do the exercises like the others.
“I lost 11 kg”
I started training at 6. A month, with a diet beginning on the 9th. In five months, I lost a total of 11 kg. I notice a big difference in myself in terms of both looks, but also energy. The food is really great, it included everything I love and I didn't miss anything. I did not always adhere to it, but even with this, excellent results are visible.
“I can actually keep this diet”
Thank you for another one. This is the first time that with the help of nutrition I was able to regulate both hormones and the work of the thyroid gland. This has now given me even more motivation to continue with this diet.
.svg){kind=small}
