The regeneration perks...

[Morloc]

The regeneration perks...
These might need some love.

When eating food on the fly was without risk, you could keep the regeneration engine powered up all the time.
Now the perk seems much less useful.

Consider adding a portion (or larger portion) of the regeneration for "free" (i.e. not accelerating food consumption).

 

[Jost Amman]

I'm currently playing exactly a Fortitude build and I can tell you that, in my opinion, the regeneration perk was designed to work hand in glove with the Iron Guts perk. Why? Because while you consume more food with the first, you'll consume less food with the other!

Basically they balance each other out.