Sweet red blood

See this?

This is a deciliter (about 3.3 fluid ounces) of “blood”. Where I live, we measure blood glucose concentrations based on how much glucose is present in this amount of blood.

(Actually, it’s not blood, it’s red wine. Humor me.)

So, if I wanted to find out how much glucose was in the above sample of “blood”, I’d simply extract the glucose, put it on a scale, and weigh it.

(Your nation may vary, and if it does, I apologize in advance for not doing the conversion for you. But mmols involve counting molecules, not weighing them, and mmol folks base it on a full liter – or litre if you prefer – which is an order of magnitude larger)