The liver and muscles are efficient, but we tend to eat much more glucose than we need, so those storage units get full rather quickly. Fairly soon, if we didn’t have another storage unit for extra glucose, our body would lose its game of Tetris. Which part of our body can we grow very easily, without much effort and just by sitting on our couch? Introducing our fat reserves. Once insulin has stored all the glucose it can in our liver and muscles, any glucose beyond that is turned into fat and stored in our fat reserves. And that’s one of the ways we put on weight. And then some. Because it’s
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