A study that has implications for type 2 diabetes research finds that eating three low-carb meals within 24 hours lowered insulin resistance by more than 30 per cent.

一份2型糖尿病研究發(fā)現(xiàn)，24小時內(nèi)進食3餐低糖飲食可能降低30%的胰島素抵抗。

This new study, conducted by the University of Michigan, also found that high-carb meals sustain insulin resistance, the cause of prediabetes and type 2 diabetes.

這項新的研究，是由密歇根大學(xué)進行的，該研究發(fā)現(xiàn)高糖飲食導(dǎo)致胰島素抵抗，是引起前驅(qū)糖尿病和2型糖尿病的原因。

Michigan researchers wanted to assess the involvement of dietary carbohydrate, especially when timed after exercise, and how this affected four groups of eight metabolically healthy weight-matched postmenopausal women.

密歇根的研究人員想對涉及碳水化合物的飲食進行評估，特別是針對運動后的時期，以及其影響機制，分別對四組8名代謝健康且體重匹配的絕經(jīng)后婦女進行研究。

The women were divided into four groups and given meals of either 30 or 60 per cent carbohydrates with or without moderate-intensity exercise beforehand. The low-and high-carb meals had the same calorie counts.

這些女性分為4組，分別給予含30%和60%碳水化合物的餐食，事先分別進行或不進行中等強度的運動。低糖飲食和高糖飲食中含有相同的卡路里攝入量。

Researcher Katarina Borer reported that the low-carb group showed a reduction in insulin resistance after the third meal in the evening; the high-carb group experienced sustained high post-meal insulin.

研究員Katarina Borer報道，在晚餐之后，進行低糖飲食的小組表現(xiàn)出胰島素抵抗的降低，高糖飲食小組表現(xiàn)出高餐后胰島素水平。

She explained the meals fed to the high-carb group were in line with the 45-to-65 per cent daily carbohydrate intake recommended by dietary guidelines in the US.

她解釋道，高糖飲食小組的餐食中含有45-65%的每天碳水化合物量，這是美國飲食指南中所推薦的。

“We showed an acute, one-day reduction in insulin resistance after the third low-carbohydrate meal eaten in the evening, so one could argue that this is transient and insignificant,” Borer said.

Borer說，“在一天進行了3餐低糖飲食之后，晚上測得明顯的胰島素抵抗降低，可能有人會認為這是短暫性的變化，是不具有意義的?！?/p>

“But at least two other studies where high-carbohydrate meals were fed to volunteers for five and for 14 days show that the outcome was worrisome.

“但是，至少有兩項其他的研究表明，給受試者進行5天和14天的高糖飲食后，結(jié)果是令人堪憂的?！?/p>

“These subjects developed increased fasting insulin secretion and insulin resistance, increased glucose release by the liver which produced high blood sugar, and dramatically lowered fat oxidation that contributes to obesity. These then were more persistent effects that could be a path to prediabetes and diabetes.”

“這些受試者具有空腹胰島素分泌增多、胰島素抵抗、肝臟釋放血糖增加的情況，以及脂肪氧化減緩，這會導(dǎo)致肥胖。長年累月之后，這些因素最后會導(dǎo)致前驅(qū)糖尿病和糖尿病。

Furthermore, exercise did not lower insulin resistance in either group, so the findings suggest that the insulin reaction was driven by the effect of carbohydrate. But Borer added that this doesn’t mean exercise doesn’t influence insulin action.

另外，無論是高糖還是低糖飲食組，運動都未能降低胰島素的抵抗，因此，研究發(fā)現(xiàn)提示，胰島素的反應(yīng)受碳水化合物的影響。但是，Borer補充說，這并不代表運動不會影響胰島素的情況。

原文作者：Jack Woodfield

原文標(biāo)題：Low-carb diet outperforms high-carb diet in lowering insulin resistance, study reports

文章鏈接：http://www.diabetes.co.uk/news/2016/nov/low-carb-diet-outperforms-high-carb-diet-in-lowering-insulin-resistance,-study-reports-93633093.html

發(fā)表期刊：PLOS ONE雜志