Germ, or embryo, from which springs new life. The wheat germ is one of the 8 richest known sources of B and E vitamins and contains protein, fat and mineral matter. The germ and bran contain organic phosphates, which provide brain and nerve food. Calcium for bone and teeth is also supplied from these parts of the kernel. Endosperm, the inner part of the wheat kernel, where cellulose, starch and gluten are abundant, but very little vitamin and mineral substance is present.
White flour is made principally from the endosperm.
In white flour, about one-half of the fat is lost. The fat from a wheat kernel has a high food value, since it also contains unsaturated fatty acids. On the trace elements there is still much to be learned. Taken from Wheat For Man, Bookcraft, SLC, UT page 5. Looking at a nutritional analysis, wheat has much of what we need to keep healthy, especially if it's been sprouted.