|
Low blood sugar will cause weakness. You'll actually feel weak and if you do enough sports, you'll be able to spot this feeling very easily.
Did you feel weak along with the dizziness, or just dizzy?
If it's just dizzy, then it's probably not blood sugar related. Your cardio could also not be as good as you think and you are outstripping the oxygen your body has available. If that is the case, I would suggest doing interval type cardio instead of just straight cardio. Intervals decrease the recovery time between efforts and increases the amount of blood pumped per beat. It increases overall pumping volume as well.
|