Many people with diabetes feel frustrated: they are already taking glucose-lowering medication and watching their diet carefully, yet their post-meal blood sugar is still a bit high. What can they do?
In fact, for people with type 2 diabetes, small details during meals can also affect blood sugar fluctuations.
Today I will share several practical tips to help you lower your postprandial blood glucose by 1–2 mmol/L.
3 Things to Do Before Meals to Control Postprandial Blood Glucose
- Eat something 30 minutes before the main meal
About 30 minutes before your meal, have a cup of sugar-free soybean milk or milk, or one egg. This method is called pre-meal snacking.
Pre-meal snacking means eating a small amount of food 30 minutes before the main meal, so that your digestive system responds and the gut releases substances that help increase satiety and improve insulin secretion.
Studies show that pre-meal snacking can boost insulin release and help people with diabetes control postprandial blood glucose.
Important note:Food eaten for pre-meal snacking must be counted toward your total daily calorie intake. Take a small portion from your main meal and eat it earlier. This way you get the blood sugar benefit without extra calories. - Have a bowl of boiled leafy greens before eating
Leafy green vegetables are rich in dietary fiber and vitamins, low in calories, and very suitable for people with diabetes.
Dietary fiber slows down stomach emptying, delays the digestion and absorption of glucose, and improves postprandial blood glucose metabolism and long-term control.
It is recommended that people with diabetes eat a bowl of boiled leafy greens before meals. This adds fiber and vitamins, increases fullness, reduces total calorie intake, and helps control post-meal blood sugar.
How to make boiled leafy greens:Wash the vegetables, boil water, blanch the greens until just cooked, drain, cut into small pieces, and season lightly with salt, soy sauce, and vinegar — or eat plain. - Use an alarm to control meal duration
Eating too fast easily leads to overeating, which harms postprandial blood glucose control.
The Guidelines for Nutrition and Exercise in Hyperglycemia (2024 Edition) issued by the National Health Commission of China recommends that people with diabetes eat regularly and chew slowly.
Set an alarm to control your meal time: Breakfast: 15–20 minutes
Lunch & dinner: 20–30 minutes
Ideally, keep the interval between meals at 4–6 hours.
3 Things to Do After Meals to Control Postprandial Blood Glucose
- Leave the dining table immediately after finishing
When eating with family or friends, people often stay seated and chat, and may unconsciously take another bite of rice or vegetables.
Even one extra bite matters:One bite of staple food (about 10 g) adds 5–8 g of carbohydrates, which will push your postprandial blood sugar higher.
Over time, this makes blood glucose and weight control harder and may require more medication.
Therefore, people with type 2 diabetes should leave the table right after finishing to avoid extra eating and reduce sitting time. - Stand and walk after meals — do not sit or lie down
After eating, you should not just move to another chair or lie down. Instead, stand up, walk around, or do housework to increase daily activity.
Prolonged sitting is an independent risk factor for type 2 diabetes.Breaking up long sitting periods every 30 minutes with standing or light walking effectively improves 24-hour blood glucose and insulin sensitivity.
So moving after meals helps control postprandial blood sugar. - Exercise 1 hour after finishing eating
It is not suitable to exercise right after eating, but post-meal exercise is very effective at preventing sharp blood sugar rises.
According to the Guidelines for Nutrition and Exercise in Hyperglycemia (2024 Edition), people with diabetes should start exercising 1 hour after meals.This safely lowers the 2-hour postprandial blood glucose peak and reduces the risk of hypoglycemia.
Recommended exercises: Aerobic exercise
Resistance training
Stretching/flexibility exercise
Combined exercise often works better than a single type for blood glucose control.