What happens if you have too much sugar?

Hypoglycemia: As a result of too much sugar at once, your body can make a large surge of Insulin to handle the sugar. As a result, you may experience a post sugar low, called hypoglycemia, it might present as fatigue, tiredness, lethargy. It is best to have sugar with fiber and protein in the diet, the fiber and protein slow the absorption of sugar into the blood.