[10] In 1989, Parvez obtained his PhD in Biochemistry from the Royal Free Hospital School of Medicine, University of London,[8] under the supervision of Professor Dennis Chapman FRS.
Succeeding his post doctoral fellowship, he started his career as a lecturer in Biochemistry at De Montfort University, Leicester in 1996.
[20][21] In 2011, on a conference at Rize Üniversitesi, Haris presented how the toxic elements in the soil through foods effect on human health.
[22] Besides, he is continuing research on other biochemistry subjects including coronavirus,[23][24] Human Health, Nutrition, Environmental Pollution etc.
[28][29][3] A group of scientists led by him found a link between arsenic and rice consumption among a small number of British Bangladeshis.