system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] How does Bane get stronger without his muscles killing him?

Often times we see Bane take Venom and then he grows larger and his muscles expand in size. How does he survive this? Where does the extra tissue come from?
gpt
Spitballing here but if lets just assume its ultra steroids, its also extremely energy dense, more so than even gasoline. So its probably nuclear in nature which has a few million calories in a few grams. 

So ultra steroids and a cocktail of nutrients that allow the body to process nuclear energy into calories giving Bane the caloric intake to bulk muscles instantly.