3 October 1958
Dear Mrs. Head:
I am pleased to answer the question that you asked in your letter of 16 September, about the necessity for dietary food supplement.
We know from the experience of the human race that human beings who have a good ordinary food supply get along well without a dietary food supplement, unless they have some abnormality.
There are, however, some human beings who may need dietary food supplement, and some who do not get a satisfactory diet without such a supplement.
Sincerely yours,