Reactive hypoglycemia or Postprandial hypoglycemia, is a medical term describing recurrent episodes of symptomatic hypoglycemia occurring 2–4 hours after a high carbohydrate meal (or oral glucose load). It is thought to represent a consequence of excessive insulin release triggered by the carbohydrate meal but continuing past the digestion and disposal of the glucose derived from the meal.
To relieve reactive hypoglycemia, some health professionals recommend[citation needed] taking the following steps:
Eat small meals and snacks about every 3 hours.
Exercise regularly.
Eat a variety of foods, including meat, poultry, fish, or non-meat sources of protein, foods such as whole-grain bread, fruits, vegetables, and dairy products.
Choose high-fiber foods and food with a moderate-to-low glycemic index.
Avoid or limit foods high in sugar, especially on an empty stomach. Some people with reactive hypoglycemia may not be able to tolerate any foods containing sugar (cane sugar), or high fructose corn syrup.
Avoid alcohol, caffeine, and highly starchy foods such as white rice, potatoes, corn, and popcorn (all very high on the glycemic index).
Adding soluble fibers (e.g., 5 to 10 grams of hemicellulose, pectin, or guar gum) to a meal may help to relieve symptoms, especially in dumping syndrome.
Limiting total intake of carbohydrate to 130 grams/day can reduce the severity of symptoms.
Found this on Wiki, hope it helps in some way. I would ask your bariatric team for advice tailored to your individual needs though.