Hydrogen is a colorless, odorless gas that, given enough time, starts to wonder where it came from.

As Carl Sagan said, “The cosmos is within us. We are made of star-stuff.”

No wonder.

• Water: 2 hydrogens per 1 oxygen, 66%!
• Carbohydrates: same story
• Fats: a LOT of hydrogen
• Proteins: yep, lots of hydrogen!
• Vitamins: same

Most organic molecules feature a lot of hydrogen that essentially serves as a placeholder for all the free bonds of carbon (and there is plenty!), oxygen, and nitrogen. Hydrogen is essentially the default thing to connect to about any organic molecule. And yes, it is primarily taken from water in the grand scheme of things.

Not me. I make my hydrogen from scratch every morning. Takes a while, but you can really tell the difference.