In recent years, the role of chronic low grade inflammation in the emergence of chronic diseases has been emphasized. Chronic low grade inflammation is a metabolic process characterized by systemic circulation and increased inflammatory mediators and some proinflammatory cytokines in various tissues. C-reactive protein (CRP), tumor necrosis factor-alpha (TNF-alpha), interleukin-1 (IL-1), interleukin-4 (IL-4), interleukin-6 (IL-6), toll like receptor-4 (TLR-4) are some proinflammatory molecules that play a role in the chronic low grade inflammation. Recent studies have shown that fructose and saturated fatty acids, which are consumed with increased consumption of processed foods in the current diet, might trigger chronic low grade inflammation. In this review, the effects of dietary high fructose and saturated fatty acids on development of chronic low grade inflammation through some proinflammatory mediators were examined.