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“饭困”“晕碳”就是胰岛素抵抗?-九灵信息

“饭困”“晕碳”就是胰岛素抵抗?

2026-10-07 11:59 0 热门推荐 【编辑:刘阳禾】
【编辑:刘阳禾】 作者
1#

  为什么减肥减不下去?一个看似相当专业的名词“胰岛素抵抗”受到网友关注。

  近日,不少网友称,“晕碳”“吃碳水后犯困”其实是胰岛素抵抗,须少吃或不吃主食来改善,以便“有效减肥”。对此,内分泌专家表示,并不是所有“饭困”都是胰岛素抵抗,而胰岛素抵抗的关键影响因素,也不在于“要不要吃碳水”,而在于“吃什么”“怎么吃”。

  吃碳水后为何犯困?

  吃碳水后犯困,就是胰岛素抵抗?

  “这种说法太绝对。饭后容易犯困其实是多种因素叠加的生理反应,胰岛素抵抗可能会加重这种困倦感,不过,单凭这一个表现不能简单推断就是胰岛素抵抗。”广州市第十二人民医院内分泌科主任医师李婉媚说。

  广东人常说“饭气攻心”,饭后犯困可能是多种因素叠加。最常见的诱发因素,就是当大量摄入精制碳水、高GI(血糖生成指数)食物,会带来血糖波动,这往往会使人感觉疲劳、犯困。

  什么情况是胰岛素抵抗?简单地说,就是胰岛素在努力降低血糖时,细胞却不再像以前那样“积极响应”,导致血糖水平居高不下,以至于饭后特别容易出现犯困、疲劳、乏力、精神不振等情况。所以,“如果犯困特别重、反复出现,或是伴有腹型肥胖、血脂异常时,这时需要警惕是否胰岛素抵抗。”李婉媚说。

  如何判断胰岛素抵抗?

  如何判断自己的“饭困”,是身体在正常“放松”,还是胰岛素抵抗?“犯困特别严重”有没有标准?

  “可以从以下4点进行简单分辨:偶尔吃很多才会?30分钟左右可缓解?活动后可缓解?没有其他不适的伴随症状?”李婉媚介绍,“如果每天餐后都明显困倦,困意持续1小时以上,必须睡觉才能缓解,可能伴有头晕、头痛、心慌、冷汗症状,或近期体重快速变化、口渴、多尿、打鼾,血糖、血压、血脂升高异常等情况,那就需要警惕。”

  此外,从外观上看,如果身体出现腹型肥胖(男性腰围≥90厘米,女性腰围≥85厘米),或是皮肤变黑,颈部、腋窝等皮肤褶皱处出现色素沉着、增厚,如果身体出现了这些警示信号,就应该尽快就医检查评估。

  有哪些认知误区?

  对于胰岛素抵抗,网络上还流传着不少误区。李婉媚对此一一剖析辟谣:

  误区1:只要不吃主食,胰岛素抵抗就能好?

  辟谣:这是最常见的误区。其实胰岛素抵抗的关键影响因素不在于“要不要吃碳水”,而在于“吃什么样的碳水”。真正加重胰岛素抵抗的,是精制加工、高油高糖的低质量碳水,如白米饭、白面包等。改变进食顺序,按照“蔬菜→蛋白质→主食”的顺序进食,可以尽量避免血糖像过山车一样骤升骤降。盲目戒断主食(碳水化合物)可能导致内分泌紊乱等严重后果。

  误区2:胰岛素抵抗等于糖前或糖尿病?

  辟谣:不对。胰岛素抵抗并不等于糖前或糖尿病。虽然2型糖尿病、多囊卵巢综合征、肥胖等都跟胰岛素抵抗有关,但是,通过积极干预,如控制饮食、运动锻炼、减重等,胰岛素抵抗是可以改善甚至逆转的,不需要过度焦虑。

  误区3:改善胰岛素抵抗,只需要控制饮食?

  辟谣:不对。合理科学的饮食是核心,但并非全部。不运动、久坐、睡眠质量差和长期压力都会直接影响胰岛素敏感性。规律的力量训练、保证充足睡眠和管理情绪减轻压力,与调整饮食同等重要。例如,每天餐后进行少量轻缓活动,散步或靠墙站立15分钟左右,都有帮助。

  羊城晚报记者 林清清 通讯员 廖温勃

【编辑:刘阳禾】

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