Activated charcoal is primarily used to:

Activated charcoal is primarily utilized to reduce systemic absorption of toxins in cases of poisoning or overdose. Its mechanisms involve adsorbing various chemicals and toxins in the gastrointestinal tract, preventing their absorption into the bloodstream. This function is particularly critical in veterinary medicine, where timely intervention can make a significant difference in the outcomes for animals that have ingested harmful substances.

The use of activated charcoal offers a non-invasive and effective means to manage certain types of toxic exposures, and it can significantly decrease the bioavailability of toxins, thereby limiting their harmful effects on the body. By binding to the toxins, activated charcoal effectively "traps" them, allowing for their excretion without causing further adverse effects.

Other options, such as enhancing digestion, supporting liver function, or increasing nutrient absorption, do not accurately reflect the primary role of activated charcoal, which is focused specifically on toxin reduction and prevention of systemic absorption. These functions are not within the scope of activated charcoal's intended use in toxicological scenarios.