Barbara Basia Siwik

Personal Coach & Nutrition Advisor

Barbara Basia-Siwik is a personal coach and holistic fitness & nutrition advisor with more than nine years of experience helping individuals transform physically and mentally through a science-based, integrative approach. Her journey began in 2015 in England, where she completed her first YMCA fitness qualification and soon became a certified personal trainer and nutrition advisor. Experiencing hormonal imbalances early on led her to explore how the brain, gut, hormones, and nervous system influence confidence, resilience, and long-term change. This curiosity drove her to complete her sports psychology certification in 2024 and begin neuroscience development studies in 2025, giving her recognized ability to apply neuroscientific methods in her coaching.

Barbara tailors her programs to the hormonal and physiological differences between women and men, adjusting training around cycles, nervous-system sensitivity, and resilience. She helps women rebuild feminine energy and inner power, while supporting men in understanding performance rhythms and hormonally informed training.

Since relocating to Barcelona in 2017, her business has continued to grow. She coaches clients in person in Barcelona and online across Switzerland, France, Belgium, Poland, England, Dubai, Saudi Arabia, and throughout Spain. She has led transformation bootcamps and workshops in Mallorca, Ibiza, Málaga, and Barcelona, and she personally ran two fitness events during the Dubai Fitness Challenge, expanding her international presence.

In 2024, she released a practical e-book for busy individuals on the go, designed to help people build healthy, sustainable habits within demanding schedules. Barbara is known for creating supportive communities that grow beyond the training space, forming meaningful connections across countries. Her mission is to help people uncover the deeper “why” behind their goals and achieve long-term physical and mental wellbeing through a holistic, neuroscience-informed approach delivered with a personal and human touch.