What crucial stipulation must be met regarding the source of catfish for maximum purity adherents?

The difference between wild-caught and farm-raised can influence fat profile or trace contaminants.

Although the carnivore diet primarily focuses on the composition of the food (animal vs. plant), a subtle consideration arises when analyzing the source of fish like catfish, particularly for those employing the diet as a rigorous elimination protocol seeking maximum purity. The distinction between fish caught in natural environments versus those raised on farms is relevant because farmed varieties may have been exposed to different environmental conditions or different feed compositions. These variables can subtly alter the resulting fat profile of the fish or introduce potential trace contaminants, necessitating personal filtering by highly committed followers.