Though our brain weighs in at just 2% of our body weight, it consumes about 25% of our body’s fuel. Our body uses about 50% glucose and 50% fat as fuel, yet some organs (like our brain and red blood cells) only burn glucose!
And, no, body fat can not be turned into glucose (don’t we wish!). To effectively fuel the brain we need to eat on a regular basis. If you don’t, the body HAS to find an internal source of glucose. Our liver stores just 300-400 calories worth (not much considering our minimum daily glucose needs are double that).
Where does the body find the glucose it needs? From protein – either from the protein you eat (especially if you eat a lot) OR the body breaks down your muscle mass and turns it into glucose for the brain. Uh oh!
The solution? Eat more in alignment with how our body burns fuel (like we did when we were babies)… on a regular basis. That could be three fairly equal-sized meals (instead of skimping during the day and indulging in the evening). Some people feel better eating four smaller meals, or adding strategic snacks. You can find more about this in my book, Reboot – how to power up your energy, focus, and productivity.