Freezing rice not only saves time and work: for many Tamnb nutritionists

When one makes rice, there are only two options: either you fall short, or kitchens to feed half regiment. In that second case, the usual thing is to save it in a taper for the next day. What everyone knows is that this daily gesture – guard, cooling and reheating rice – can have effects on your health and even help you absorb less calories.

But if it’s just reheating it … There is something else. And no, it is not a Tiktok kitchen trick or a fashion without a base: it is pure biochemistry. In a report by El Confidencial, Dr. María Muñoz – specialist in digestive system at the Virgen de la Arrixaca hospital in Murcia – made it clear that the rice of the next day has no magic, but enough science. “Did you know that cooked and then frozen rice can have fewer calories? It is not magic, it is science and has to do with how your body digests starch,” he explained.

The secret is on the starch. The key to this transformation is a substance called Resistant starch. When cooking foods rich in starch – such as rice, pasta or potatoes – a process called gelatinization is produced: starch chains are messy and become more accessible to our digestive enzymes.

But if that food cools (for example, in the fridge or freezer), those chains are reorganized in a more compact and less digestible way, through a process called retrogradation. The result ends that starch becomes resistant, that is, it is not absorbed as glucose. Instead, it reaches the colon and acts as a prebiotic fiber.

Less calories, better digestion. This type of starch – the so -called type 3 – behaves like a fiber: feeds the good bacteria of the intestine and generates beneficial compounds such as short chain fatty acids, including butyrate, essential for intestinal health.

According to has pointed out Dr. Muñoz in El Confidencial, that resistant starch “is not digested or absorbed as glucose, but passes to the colon as a fiber, having a prebiotic effect.” In other words, the body absorbs less calories and experiences a more moderate glycemic response. Something especially useful for people with insulin resistance, digestive problems or who seek to control their weight.

Science behind. As We have explained in Xatakavarious studies partially support the benefits of resistant starch. From Cleveland Clinic They define it As “a functional fiber that can help improve intestinal microbiota, regulate blood sugar and contribute to the immune system.”

Now, not all types of resistant starch act the same. According to a meta -analysis posted in Scientedirectthe most powerful effects are observed in the types present naturally in foods such as green bananas or legumes. Type 3, the reheated rice, also shows benefits, although to a lesser extent. In other words, you can add, but it will not work miracles on its own.

But there is a silent bacterium. The rice has its weak point, and it is not the microwave. When it is already cooked, it is especially vulnerable to a little known but quite resistant bacterium: Bacillus cereus. This bacterium can survive the heat of cooking and, if the rice stays too long at room temperature, find the perfect environment to multiply. The problem comes that it is not enough to reheat it: their toxins can continue there, causing poisoning with symptoms such as diarrhea or digestive discomfort. A silent risk that many times goes unnoticed between tuppers and leftovers of the previous night.

Dr. Muñoz He has warned In the confidential that a bad conservation can have consequences. And in Xataka He also alerted that the cooling and overheating cycles – precisely those needed to generate resistant starch – are an ideal environment for this bacterium if they are not handled well.

The recommendations are clear: cooling the rice in less than an hour, save it in the fridge (or freezer) without exceeding 48 hours if it does not freeze, reheat only once and never leave it several hours at room temperature.

One last concern. Rice not only worries how we cook it, but also how it is grown. In an article published in Xatakawe collected the results of a study that launches a disturbing warning: climate change could be increasing arsenic levels in rice. The reason is in the combination of two factors – more carbon dioxide and higher temperatures – that facilitate plants to absorb more arsenic of the soil. If the trend continues, the impact could be noticed around 2050, especially in regions where rice is basic food.

Reheating is not magic, but it can help. Finally, reheating rice can help you absorb less calories, but you will not convert a paella dish into a miraculous diet. Science supports it, provided that good conservation practices are followed. What began as a fashion on social networks has ended up opening a broader conversation about microbiota, glucose and eating habits.

In the end, it’s not about changing your life for a rice taper. But with a simple gesture you can improve your intestinal health and reduce the caloric load a bit.

Image | Pexels

Xataka | The strange worship of resistant starch: what is behind the fever to cool food so that fattening less