My career has two distinct paths: Western and Eastern. At the age of 21, I pursued education in nutrition, sports nutrition, and coaching in the USA and Canada. During this period, I learned the biochemical aspects of the field by working with world-renowned instructors and professional athletes.

For 15 years in Turkey, I provided consultancy to pharmaceutical companies and enhanced my knowledge by reviewing tens of thousands of clinical studies. However, realizing that not all information from clinical studies is reliable, I began to evaluate nutrition research with a critical eye. At this juncture, the Eastern aspect of my career came into play. I moved to China, learned Chinese in Shanghai, and received training in traditional Chinese medicine. The perspective of traditional Chinese medicine on human health deeply influenced me.

After returning to Turkey, I was diagnosed with two illnesses: asthma and ankylosing spondylitis. However, through nutrition, mental transformation programs, and lifestyle changes, I managed to overcome these diseases. To disseminate the knowledge I acquired and share the methods I developed, I founded a company named Habit.

I received my functional medicine training from the Functional Medicine Platform. Currently, I am pursuing a master's and doctorate in Nutrition and Dietetics at Dublin University. My areas of expertise include food addictions, gut microbiota, mindful eating, digestion, and resistance exercises. Additionally, I host the program "Good Habits with İlker Çağlayan" on the Bein Gurme channel.