He then proceeded to open the Optimum Wellness Integrated Clinic in Edmonton.

Previous to that in 1984, Dr. DeNault had graduated from the University of Alberta with a B.Sc. Pharmacy and had practiced pharmacy in both Alberta and Ontario for over 25 years. His pharmacy background helps in assessing and preventing possible interactions between conventional and natural medicines and treatments that various patients may be taking at various stages of treatment.

Since then he has continued widening his scope of practice and naturopathic knowledge base by taking advanced accreditation courses and by visiting clinics or attending conferences in the USA, Germany, Mexico, and Canada.