δ-Tocotrienol is from palm oil. Delta-tocotrienol is a potential angiogenic inhibitor that significantly suppresses human colorectal adenocarcinoma cells (DLD-1-CM)-induced tube formation, migration, and adhesion on human umbilical vein endothelial cells. Delta-tocotrienol is a nontoxic activator of mir-34a which can inhibit nonsmall cell lung cancer cells (NSCLC) cell proliferation, induce apoptosis and inhibit invasion, and thus offer a potential starting point for the design of novel anticancer agents. Delta-tocotrienol displays significant radioprotective effects that protects mouse and human hematopoietic progenitors from gamma-irradiation through extracellular signal-regulated kinase/mammalian target of rapamycin signaling.