Antonia Ćosić, osobni trener i nutricionist sjedi na plavoj pilates lopti u teretani

Fitness and Diet to
Get in Shape

By combining training and nutritional guidelines, not just one or the other, we work together to achieve your fitness goals.

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300+

Satisfied clients

6+

Years in fitness

1,000+

lost kilograms

Just Right
For Your Taste

More than Fitness

Personalized training and diet - not one or the other. As a certified fitness trainer with a Master's degree in Nutrition, I understand the importance of both.

Simbol žene koja vježba, simbolizira zdravlje, aktivan život i motivaciju za treninge.

Made for Every Body

My services are tailored to everyone: students, mothers, beginners and recreationists. Regardless of experience and lifestyle, you'll find exactly what you need.

Simbol opcija ili postavki, idealan za prilagodbu treninga ili fitness planova.

Function Meets Variety

Fitness and nutrition call for variety, not a military regime. Achieving sustainable results implies an interesting program and a colorful plate you'll love.

Simbol prijateljstva s dvije osobe, simbolizira podršku i zajedničke fitness ciljeve.

A Friendly Touch

Sometimes you have to start with the spirit. A frank conversation and a spontaneous smile are an integral part of getting in shape.

Get Started With  
Free Workouts!

No gym? No problem. Choose a workout, clear some space, and hit that play button!

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Antonia is the best coach!!!! I cannot describe how that woman can empower and motivate you to become a better version of yourself. 200% recommended

Ana Maria Sobrado Mora

Antonia is a person who carries knowledge and experience from several spheres in order to make this journey as easy as possible mentally and more visible physically.

Anita Šunjić

Each training session is customized, challenging and full of positive energy. Expertise, commitment and motivation in one person. Recommended to everyone!

Ana Ostojić

Who am I?

An EREPS-certified Fitness Trainer and a Nutritionist with a Master's degree.

With 6+ years of experience as a fitness instructor and a passion for an active lifestyle, I combine expert knowledge about nutrition and fitness to help you achieve your health and fitness goals.

  • 01
    6+ years of fitness experience
  • 02
    M.Sc. in Nutrition and Dietetics
  • 03
    Fitness trainer at one of the biggest
    recreational centers in South Europe
about me
Trenerica s prekriženim rukama u sportskoj odjeći, spremna pružiti podršku kroz personalizirane treninge.
Portret osobnog trenera, Antonije Cosic, u sportskoj odjeći

How Can I Help You?

Whether you want to lose weight, improve your physical appearance or promote recovery from chronic pain, I will tailor the training to your needs.

Through a variety of exercises and analysis and correction of your eating habits, I will provide you with a holistic approach that leads to visible results.

  • 01
    Online & in-person personal coaching
  • 02
    Corrective & body-transform workouts
  • 03
    Customized diet plans
  • 04
    Group strength training and Pilates
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Wins That Speak Volumes.

Profilna slika klijenta 4 osobnog trenera BlissFit by Antonia koja se koristi za testimonial.

“I keep seeing the progress.”

Antonia is dedicated. She monitors correct execution, warns when needed and adds new exercises. She is always in the mood togive guidance. As for the diet plan, it was super-adapted to my desires and capabilities. At no time did I feel that I was on some kind of rigorous diet, quite contrary...

Medina Košpo
Individual Training and Nutrition
Profilna slika klijenta 3 osobnog trenera BlissFit by Antonia koja se koristi za testimonial.

“I move just like everyone else.”

I suffer from arthritis and have decided to train and eat healthy. Antonia made me a nutrition plan while minding my needs and therapy. Each training is specially designed for me since there are limitations in the movements. I got to the stage where I do the exercises like everyone else.

Nikolina Miljko
Individual Training and Nutrition
Profilna slika klijenta 2 osobnog trenera BlissFit by Antonia koja se koristi za testimonial.

“Lost 11 kg in 5 months.”

In five months, I lost a total of 11 kg. I notice a big difference in terms of both looks, but also energy. The food options are great - they include everything I relish and I don't missa thing. I did not always adhere to it, but even with this, I see big results.

Karla Pervan
Individual Training and Nutrition
Profilna slika klijenta osobnog trenera BlissFit by Antonia koja se koristi za testimonial.

“Hormones finally in check.”

Thank you! This is the first time, with the help of nutrition, that I was able to regulate both hormones and my thyroid gland. This has now given me even more motivation to continue with this diet.


Neira Omanovic
Individual Training and Nutrition

Tricks Advice

The fitness industry is full of quick fixes, but real change takes time. Through this blog, I aim to share accurate, no-nonsense information that actually helps you see results.

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