You glimpse flat by day 4. Is just NOT a person are will are similar to when fully carbed-up. Remember that each gram of glycogen in the muscles brings 3 grams water with getting this done. When glycogen stores are low (and they will be) could "appear" flat and without the need of muscle. It is simply water, don't sweat this can. so to speak!Your carb-up days are for refilling your glycogen stores on...