Not to be confused with Blood.
Diet Blood is a beverage that SpongeBob is seen drinking in the episode "Born to Be Wild."
Diet Blood is a beverage that comes in a red cup. The cup is labeled "Diet Blood" in dark red font. It has a lid and a straw.
Role in episode
SpongeBob is seen drinking it after he mentions how bloodthirsty he is. Patrick first offers him some Blood, but SpongeBob politely says no "thank you" because he has Diet Blood.
- It is unknown what the chemical and taste difference is between this and the regular Blood.