"You need clear, energetic minds, in order to appreciate the exalted character of the truth, to value the atonement, and to place the right estimate upon eternal things. If you pursue a wrong course, and indulge in wrong habits of eating, and thereby weaken the intellectual powers, you will not place that high estimate upon salvation and eternal life which will inspire you to conform your life to the life of Christ; you will not make those earnest, self-sacrificing efforts for entire conformity to the will of God, which His word requires, and which are necessary to give you a moral fitness for the finishing touch of immortality. 2T 66.1"
"And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God."
Both passages discuss the importance of a renewed mind and not conforming to the world. EGW connects this to health habits and their impact on spiritual perception, which supports the principle of transformation in Romans 12:2.