The Vedanta Sutras of Badarayana, Commentary by Sankara (SBE38), tr. by George Thibaut  at sacred-texts.com
29. And on account of the non-sublation.
And thus those scriptural passages which distinguish lawful and unlawful food, such as Kh. Up. VII, 26, 2, 'When the food is pure the whole nature becomes pure,'--are non-sublated.