The ancient Egyptians were black Africans, displaced by later movements of peoples, for example the Macedonian, Roman and Arab. Arab invasion, do not seem to account more than15% of modern Egyptians. Because the epidemiology and demographic characteristics of NAFLD vary worldwide, we aimed to identify the risk factors of NAFLD among Egyptians. We had conducted a lot of researches regarding genetic polymorphism of the following: TNF-∂ G238A, PNPLA3, PPAR-gamma, Resistein & Adiponectin receptors gene liver expression. Also we had worked on insulin resistance in non-diabetic patients with NAFLD, Total lipid profile, conjugated linolenic acid (omega 6), and intestinal microbiota. Our results showed that; Egyptian with different grads of NAFLD identified by NAS score in liver biopsy had significant TNF-∂ G238A, PNPLA3 polymorphism, and Resistein receptors gene liver expression in NASH patients. In Egypt a high BMI and insulin resistance level in non-diabetic patients with NAFLD, and NASH even highest worldwide. Triglycerides was significantly high, HDL-c was low in NASH patients, and we had low level of