How rare is reactive hypoglycemia?

Uncommon: In someone with a normal GI tract, hypoglycemia after a meal is very uncommon. To be fair, some people feel yucky 2 hr after eating a sugar-rich meal. But it is rarely a low blood sugar. Most people will not feel symptoms unless the blood glu is <60. I people who have had gastric bypass or other GI surgeries, post meal hypoglycemia can occur. One cause is nesidioblastosis.