Background: Unhealthy diet and lack of physical activity are leading global risks. Dietary oils (DO) constitute an important source of lipids and energy in the human diet. High intake of dietary saturated fatty acids should be avoided since it is linked to a higher risk of heart and kidney diseases. DO consumed by humans have a major impact on the blood glucose level. DO can alter the membrane lipids composition this in turn leads to changes in functions of glucose transport and insulin receptors. The prime function of glucose transporters is that it mediates the uptake of glucose, which is vital for regulation of blood glucose levels. This review evaluates the published evidence on dietary oils and its impact on blood glucose levels. Methods: The keywords used for data retrieval were dietary oils AND blood glucose levels OR edible oils AND blood glucose levels. The relevant data from existing literature were collected from PubMed, science direct, Scopus, and Google scholar from 2007 to 2022. Criteria includes dietary oils (coconut, mustard, sesame, nigella sativa (jeera), rice bran, olive, ground nut, palm oil), blood glucose levels, according to Prism direction. 52317 articles were identified, followed by screening and finally ten research papers were selected for review on the impact of dietary oil on blood glucose level and its associated complications. Selected literature contained twenty four to four hundred samples, with age ranging from eight weeks to seventy years of humans and animals.