The kernel is the essential part of a seed; all that is within the seed walls; the edible substance contained in the shell of a nut; hence, anything included in a shell, husk, or integument; as, the kernel of a nut. Also a single seed or grain; as like a kernel of corn.
Nuts & Kernels are found to be highly nutritious and a perfect dietary supplement as well. Cashew Nuts, Peanuts, Arecanuts, Pecan, Hazelnuts are some to be noted.