Dr Kellogg's whole thing was trying to prevent masturbation for health reasons. Advocated a super bland diet to avoid anything at all stimulating. Corn flakes were invented as part of that.

Graham crackers were invented by one of his contemporaries for the same reason.

Kellogg is also the reason why routine circumcision became a thing in the US to start with (circumcision reduces sensation, he thought the reduced sensation would prevent masturbation while not reducing it so far that it prevented reproduction), and tradition and the uses of human foreskin in the biotech and cosmetic industries help keep it going.

Just be glad his treatment for girls meant to be akin to circumcising boys never took off. Which was burning the clitoris with acid to scar it and reduce sensation.