米饭冷藏后再吃能减肥?研究:这种碳水每天吃40克,4个月肝脏脂肪降57.7%
Resistant starch — a type of carbohydrate found in whole grains, beans, potatoes and chilled rice — may help reduce liver fat, according to research from Shanghai Jiao Tong University.
每天摄入40克抗性淀粉
4个月后肝脏脂肪下降57.7%
A 2025 study published in Cell Metabolism found that taking 40 grams of resistant starch daily for four months cut liver fat by 57.7 percent in 75 percent of participants.
An earlier 2023 study in the same journal linked resistant starch to improved fatty liver through changes in gut bacteria. Weight, BMI and visceral and subcutaneous fat also fell, while liver enzymes and blood lipids moved toward healthier ranges.
抗性淀粉到底是什么?
为什么效果如此显著?
Resistant starch is starch that the small intestine cannot digest. Instead of breaking down into glucose, most of it reaches the large intestine, where gut bacteria ferment it as a prebiotic. It provides about 2 calories per gram, compared with 4 for ordinary starch — which is why it has drawn growing interest from nutritionists.
Research has linked it to weight loss, reduced fatty liver, better blood lipids and improved insulin resistance.
抗性淀粉藏在这些食物里
It occurs naturally in whole grains such as oats, barley, wheat and sorghum, in beans including chickpeas, peas, soybeans, black beans, lentils, red beans and mung beans, and in potatoes and green bananas.
It also forms when cooked rice or potatoes are cooled or refrigerated, as some starch retrogrades into resistant starch.
Foods highest in resistant starch include oats, brown rice, green bananas, cooled rice or potatoes, chickpeas, red beans and mung beans. Corn, whole-wheat pasta and sweet potatoes are moderate sources, while refined rice and flour, glutinous rice, tangyuan and zongzi are low.
增加抗性淀粉摄入
记住3个小技巧
To get more resistant starch, cook rice or potatoes, refrigerate them for 12 to 24 hours and then microwave for one minute before eating, which retains 60 to 70 percent of the resistant starch.
Adding a little vinegar or lemon juice when cooking can also promote its formation, and staples should be kept firm and chewy rather than soft and mushy.
来源:新华社微信公众号 人民日报健康客户端
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