Accumulating evidence has shown that several forms of vitamin E, such as γ-tocopherol (γT), δ-tocopherol (δT), γ-tocotrienol (γTE), and δ-tocotrienol (δTE), have anti-inflammatory, antioxidant, and cancer-preventive effects, mainly through the inhibition of cyclo-oxygenases, lipo-oxygenases, NF-κB, IL-6, and STAT3, in immune and cancer cells [99]. Here, STAT3 is linked to cancer.