Metabolism jokes

I'm not suicidal, I'm just speedrunning life.

I can measure the speed of an object, because I want to km/s.

If you ever become depressed, try drinking a gallon of water before going to sleep... That’ll give you a reason to get up in the morning.

I'm not fat!!

I'm a Nutritional Overachiever.

What's the difference between an enzyme and a hormone?

You can't hear an enzyme.