providing for the establishment, issuance, effectuation, and administration of appropriate plans or projects for nutrition education, both within the United States and in international markets with respect to wheat, processed wheat, and end products, and for the disbursement of necessary funds for such purposes: Provided, That in carrying out any such plan or project, no reference to a private brand or trade name shall be made if the Secretary determines that such reference will result in undue discrimination against wheat, processed wheat, and end products of other persons: Provided further, That no such plans or projects shall make use of unfair or deceptive acts or practices in behalf of wheat, processed wheat, and end products or unfair or deceptive acts or practices with respect to quality, value, or use of any competing product;