I think the answer is enzymes.
Carnivores are indirectly effected by these things because they may eat the omnivores or herbivores that are directly consuming these substances.<span />
Answer:
im not sure i really wish I could help
Explanation:
say you eat mcdonalds everyday and all that grease and artifical flavorings that weakens ur umune system but if u eat ur fruits,veggies, protiens,and exc ur ummune system is stronger than those who eat mcdonalds all day