Our ProVen Professionals

Dr Nigel Plummer

Dr Nigel Plummer

Nigel Plummer PhD obtained his doctorate in microbial physiology from the University of Surrey, UK and went on to work at Pfizer in antibiotic research and development. In 1994, Dr Nigel Plummer and Dr Sue Plummer founded their own company, focused on the manufacture of probiotics and other nutritional supplements, with a vision of building a company driven by scientific research and innovation. 

Throughout his career, Dr Plummer has been actively involved in research and has collaborated with numerous research institutes and universities across the UK and Europe, including Addenbrooke’s Hospital Cambridge, the University of Swansea Medical School, Cardiff University, University of Sheffield Medical School and Imperial College London.  

He lectures extensively across the UK, Europe and North America, and as founder and CEO of ProVen Biotics, Dr Plummer has led the development of the Lab4® Probiotics consortia with his research team over the past 30+ years and has remained committed to developing efficacious probiotics products for specific life stages and needs.

Dr Iveta Garaiova

Dr Iveta Garaiova

Iveta Garaiova obtained her PhD in Biochemistry at Comenius University in Bratislava, Slovakia, where she also worked as a research scientist at the Faculty of Medicine. 

She joined the company in 2003 and led the research team for a number of years, focusing on probiotics and their impact on well-being. 

Iveta is a lead author or co-author of numerous peer reviewed publications and now provides scientific support for ProVen Biotics. 

She is also a member of the WIN UK, a lay member of the local research ethics committee, WALES REC6 and a Submissions & Quality Manager of the UK independent ethics, Ethiclear.

Adrienne Benjamin

Adrienne Benjamin

Adrienne is an experienced degree-certified nutritional therapist and health coach, having completed her Nutritional Therapy degree at the Centre for Nutrition and Lifestyle Management in 2013. 

As well as her own private work, Adrienne is the in-house nutritionist for ProVen Biotics, who she has worked with since 2014 and where she has developed a deep understanding of the gut microbiome and how bacteria are symbiotic with the human body and can be supportive to health.