Dear Colleagues,

It is a great pleasure to welcome you to the 5th International Congress on Deuterium Depletion, taking place in Budapest on April 22-23, 2026.

After the success of the four previous conferences, this fifth congress gives the researchers and medical practitioners another unique opportunity to get acquainted with this expanding field of science and share their results and experience about the research of the biological and physiological importance of the naturally occurring deuterium, and also about the medical and therapeutic relevance of deuterium depletion. In this context, our goal is to provide a comprehensive and global update on the latest results and developments in deuterium depletion research. We encourage scientists and medical experts worldwide to submit papers on deuterium depletion research in the fields of cancer research, oncotherapy, diabetes research, physical performance, health preservation, and anti-aging, and share their knowledge and experience with the broader scientific community.

I am pleased to see that more and more scientists from leading universities and institutes have joined our scientific work worldwide, and many companies have become involved in the research and development of deuterium-depleted nutritional and pharmaceutical products. There is a massive demand for these types of development and treatment modalities because our world, even the most developed countries, is struggling with the continuously increasing number of patients suffering from tumorous and metabolic diseases, and with their health care. Being members of this scientific community, we are all partners in this endeavor. In my view, nothing is more important in the present world than the striving for finding a sustainable, effective, and harmless way of prevention and treatment, because cancer burden is rising globally, exerting a significant strain on populations and health systems. To avert this situation, we require the collaboration of as many scientists and medical experts as possible worldwide. Let us imagine that and build a better future for the next generations!

Gábor Somlyai PhD
HYD LLC for Cancer Research and Drug Development
Chair of the Scientific Committee
5th International Congress on Deuterium Depletion