All of our coaches have completed a scientifically based training. In addition, we have all practiced a variety of sports and, therefore, know the lifestyle of athletes very well, which helps us to adapt our recommendations to the everyday challenges of athletes.


athlEATcoach stands for applying and promoting scientifically proven nutritional strategies. We want to communicate these to athletes and other interest groups in a comprehensible way and thereby dispel nutrition myths.

We deliberately do not cooperate with any companies that sell products because we want to analyse and advise independently and objectively. This is the only way we can maintain our self-imposed high-quality standard.

Jörn Utermann

Founder of athlEATcoach

After completing his bachelor’s degree in nutritional science, he specialised in the nutritional needs of athletes by completing the IOC diploma and a master’s in sports nutrition.

Jörn has taken part in competitions in sports like handball, tennis, wrestling, and CrossFit and has additional experience in training MMA and bouldering. Since he had to step back from sports due to a series of injuries, he scours through scientific journals in order to provide his coaches and customers with the best information available.

Vici Birnbaum

Expert for weight sport and swimmers

Vici is a trained dietitian and advises athletes at the Olympic training centre in Leipzig, where she mainly works with judo athletes, swimmers and triathletes. In addition to working with competitive athletes, she also supports obese people and individuals with specific clinical needs.

She has been doing weight training and CrossFit for 4 years — a hobby that is not taking lightly, even on holidays!

Lennart Gerlitzki

Our expert for competitive CrossFit athletes

After many years of playing handball and a few excursions into rowing, judo and MMA, he has found his athletic home in CrossFit and Olympic weightlifting 5 years ago. He is a box owner & coach, and regularly takes part in competitions. In addition to his successfully completed nutrition training following Rawo’s ‘Evidence-Based Nutrition Specialist’, Lennart has gained multiple years of experience in nutrition coaching.

Here at athlEATcoach, he primarily supports other CrossFit athletes in optimising their performance in training and competitions.

Christoph Jachens

Our expert for fitness and endurance athletes

Christoph has been practising competitive sports since childhood and has competed against others in football, tennis, handball, MMA, and bodybuilding — partly on a national level. In the meantime, he has succumbed to the triathlon, where he has set himself no less goal than qualifying for the Ironman World Championship in Hawaii. Christoph has completed a dual degree in fitness economics and science, is a trained personal trainer and licensed coach in sports nutrition. In addition, he is currently completing the renowned nutrition certification from Precision Nutrition.

As a nutrition coach, he primarily works with people who go to the gym and want to optimize their body composition, but also ambitious endurance athletes who want to maximize their training and competition performance.

Mario Franz

Our expert for endurance sports and hobby athletes of all kinds

Mario is our expert for ambitious endurance athletes and functional fitness sports such as CrossFit and Hyrox. He has been doing triathlons for more than 15 years and has already successfully contested all distances ranging from sprint triathlons to Ironman. In addition, Mario has been practicing CrossFit for 2 years and has won several top placements in Hyrox competitions. Since his successful graduation as a nutrition coach (“Evidence-Based Nutrition Specialist” following Rawo), he has supported triathletes in optimising their performances and advised amateur athletes on body fat reduction. He is also the contact person for nutritional questions in his CrossFit Box.

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