Choose more complex carbohydrates over concentrated sweets, and try to include some insoluble fiber and protein with each meal. Fats like those in whole milk, cheese, and meats should be limited. A low-fat diet has been shown to help in treating hypoglycemia. Use oils sparingly. If you have questions about them, consult your physician or a registered dietitian.
Alcohol is high in calories and can cause hypoglycemia all by itself.
Therefore, people with reactive hypoglycemia should avoid or limit alcohol. Caffeine should be avoided. Caffeine stimulates the production of adrenaline. So does reactive hypoglycemia. Therefore, caffeine in the diet can make symptoms worse because the production of adrenaline is increased.