It is not only the acid in your stomach that breaks down your food — many little molecules in your body, called enzymes, help with that too. (scientificamerican.com)
Only when I started reading about people suffering from thyroid side effects from following low carb did I started seriously thinking about that pesky little molecule. (drcate.com)
These harmful little molecules are highly reactive and attack our structural proteins as well as cause production of assorted inflammatory proteins. (marvistavet.com)