My Experience with Reheated Frozen Rice and Blood Sugar Control

I have diabetes myself. In the past, my HbA1c was around 7%. Over the years, I have paid close attention to my blood sugar and have tried different approaches, including medication, Chinese herbal medicine, dietary changes, reducing carbohydrates, and even greatly reducing or eliminating rice and other staple foods for periods of time.

However, as someone who grew up eating Chinese food, completely giving up rice is not easy. There is something deeply satisfying about enjoying Chinese dishes with a bowl of rice, and it is difficult to replace that experience completely.

Later, I heard that eating cooled rice might produce a smaller rise in blood sugar than eating freshly cooked hot rice, so I decided to experiment with it myself.

That led me to learn more about an important concept called resistant starch.

When rice is freshly cooked, its starch becomes gelatinized and is relatively easy for our digestive system to break down and absorb. After cooked rice is sufficiently cooled, however, some of the starch molecules can reorganize and crystallize through a process known as retrogradation. This can increase the amount of resistant starch.

Resistant starch is not digested as rapidly in the small intestine as ordinary starch. Therefore, it may slow carbohydrate absorption and reduce the rise in blood glucose after a meal. Some resistant starch also reaches the large intestine, where it can be fermented by intestinal bacteria and may help support a healthy gut environment.

At first, I simply tried eating "cold rice." When I monitored my blood glucose, however, I did not notice a significant improvement.

This made me wonder:Could the degree of cooling, the length of storage, and the way the rice is stored make a difference?

So I changed my method.Instead of simply allowing the rice to cool, I began cooking the rice normally, loosening the grains, dividing it into individual meal-sized portions, and then freezing those portions.

When I want to eat rice, I take out one portion and thoroughly reheat it in the microwave or rice cooker.

I call this: "Reheated Frozen Rice."

After following this method for some time, I noticed something very interesting in my own blood glucose readings.

When I eat reheated frozen rice, the rise in my post-meal blood sugar tends to be slower and more stable than what I previously observed with freshly cooked rice.

Even more encouraging, along with my overall dietary and blood sugar management, my HbA1c has decreased from approximately 7% to around 5.9%.

At the same time, the amount of diabetes medication I currently take is only about one-sixth of what I used to take. My blood glucose has remained quite stable overall, and there are even occasions when I do not take medication and my glucose readings remain stable.

However, I want to emphasize an important point.

I cannot say that the improvement in my HbA1c from approximately 7% to 5.9%, or the reduction in my medication, was caused entirely by eating reheated frozen rice. Blood glucose is influenced by many factors, including total food intake, carbohydrate quantity, exercise, body weight, sleep, medication, and overall lifestyle.

What I can say is that in my own repeated blood glucose monitoring, changing the way I prepare and store rice has been associated with a noticeably more stable post-meal glucose response.

This experience taught me something important:

For people with diabetes, the choice does not necessarily have to be between eating rice and completely giving up rice.

Perhaps we can ask a different question.

Instead of focusing only on:

"What should I eat?"

we can also ask:

"How should I prepare and eat the same food?"

The same bowl of rice may behave differently depending on how it is cooked, cooled, stored, and reheated. These processes can change the structure of starch and may influence how quickly the carbohydrates are digested and absorbed.

Research has shown that cooling cooked rice and reheating it can increase resistant starch and may reduce the post-meal glucose response.

My current method is very simple:

Cook the rice → loosen the grains → divide into meal-sized portions → freeze → remove one portion when needed → thoroughly reheat in a microwave or rice cooker → enjoy it with your meal.

For people who love rice but also need to manage their blood sugar, I believe this is a simple idea worth experimenting with.

Rather than simply accepting what someone else says, you can observe your own body's response.

Try eating approximately the same amount of rice with similar accompanying foods on two different occasions. On one occasion, eat freshly cooked rice. On another, try rice that has been properly cooled or frozen and then thoroughly reheated.

Check your blood glucose before eating, one hour after the meal, and two hours afterward.

Let your own glucose readings show you the difference.

Everyone's metabolism is different. Something that works well for one person may not produce the same result in another.

Your own blood glucose readings can provide the most direct feedback.

Finally, reheated frozen rice is simply one part of my personal experience with diabetes management. It is not a treatment for diabetes and should not replace appropriate medical care.