Not true. Here is one example;
Lev 11:42 Whatsoever goeth upon the belly, and whatsoever goeth upon all four, or whatsoever hath more feet among all creeping things that creep upon the earth, them ye shall not eat; for they are an abomination.
Lev 11:43 Ye shall not make yourselves abominable with any creeping thing that creepeth, neither shall ye make yourselves unclean with them, that ye should be defiled thereby.
Lev 11:44 For I am YHWH your God: ye shall therefore sanctify yourselves, and ye shall be holy; for I am holy: neither shall ye defile yourselves with any manner of creeping thing that creeps upon the earth.
The defilement refers to the defilement of the entire person, inside and out, through touching and eating such abominations. YHWH wanted Israel to be holy as He is which is a holiness through and through. Even New Covenant believers are to be holy through and through, not only through Yeshua, but through abstaining from sin.
1Pe 1:14 As obedient children, not fashioning yourselves according to the former lusts in your ignorance:
1Pe 1:15 But as He which has called you is holy, so be ye holy in all manner of conversation (behavior, conduct);
1Pe 1:16 Because it is written, Be ye holy; for I am holy.
Disobedience is the enemy of holiness.