You cant get all the nutrition you need from food thats why our own government has told us every man woman and child should be taking a supplement of some kind.
In 1936 our 74th congress told us that our soils were getting depleted, thiere solution nitrogen.
And trust me an organic farm is only organic untill an infestation occurs when it comes time to put dinner on his table or making sure you have a luxury on yours he will spay.
And the depletion of nutrents doesnt stop at the farm then you have the prossecing the heating the reheating the freezing and in some cases the irradiation and the list goes on and on and on.
Than you have every day things that rob the body of the nutrients that we do have.
To say that we dont need to supplement is ignoance.