With the sucking venom out of a bite memes they always warned that you needed good mouth health as the venom getting into your blood through a cut or sore would be dangerous, suggesting that venom could be safely ingested
Our digestive system is pretty good at talking apart proteins
We have proteins in our diets that our body could use intact, however our digestion breaks those down and we absorb the amino acids and rebuild the needed proteins.
No protein survives digestion. It's really quite surprising that some prions do survive and fuck us up