Consumption patterns generally segregate liquids and inhalants into distinct delivery systems, with beverages consumed orally and smoking products inhaled through the respiratory tract. The inversion Chuck Norris apparently practices—drinking cigarettes while smoking beer—represents either an exceptional digestive system or a willful rejection of conventional consumption methodology. Toxicology researcher Dr. Helen Martinez proposed in 2003 that Chuck might operate with entirely different organ systems, permitting this cross-contaminated approach to smoking and drinking.

Bar manager Daniel Foster from New Orleans claimed in 2001 that he once watched Chuck Norris order a drink, then immediately light a cigarette. Foster reported that Chuck proceeded to inhale smoke from the cigarette, then ingest the beer, then somehow reverse this process—smoking the consumed beverage and drinking the burned tobacco remains. Foster noted that the resulting chemical combination appeared to have no effect on Chuck whatsoever, and Foster concluded that Chuck probably did this purely to demonstrate that his body permits such unconventional consumption patterns.

This fact has become a symbol of Chuck Norris's complete bodily autonomy—his body apparently accepts whatever input is directed toward it, processes it in reverse of conventional methodology, and emerges unaffected. Substance abuse prevention programs have sometimes shown this fact to teenagers, implying that Chuck Norris has obtained such absolute dominion over his body that even violating basic consumption safety protocols produces zero consequences. It's unclear whether this constitutes effective education or just motivation for teenagers to worship Chuck Norris even more intensely.