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减肥自然疗法(2)

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2024-12-14 06:49

减肥自然疗法

丙酮酸盐 (Pyruvate)：丙酮酸盐为机体提供丙酮酸，丙酮酸是一种天然化合物，在机体产生和利用能量方面起着重要的作用。理论上讲，摄入丙酮酸盐可能增加机体的新陈代谢，特别是脂肪代谢。总人数接近150人的一些小规模研究发现丙酮酸盐或者其类似物DHAP（磷酸二羟丙酮）有助于降低体重和改善机体成分组成。比如，一项历时6周的双盲试验中，51人被分为三组：丙酮酸盐组（每天6g）、安慰剂组、未治疗组。所有人均参加同一项运动方案。6周后研究人员发现：丙酮酸盐组脂肪减少了2.6kg，体脂含量下降2.6%，肌肉组织明显增多（1.5kg），而安慰剂组和未治疗组没有明显的变化。另一项有趣的安慰剂对照研究评估了DHAP对于减肥后对增加热量摄入的控制效果。3周时间里，70名严重超重的女性作为住院病人被严格控制饮食，3周后体重下降约3.8kg。之后她们被给予了高热量饮食。同时，其中接近一半女性每天同时服用15g丙酮酸盐和75g磷酸二羟丙酮，而另一半同时服用安慰剂。结果发现经过三周的增重饮食后，接受治疗的成员只增胖了1.8kg，而安慰剂组则增加了2.7kg。这可能是因为丙酮酸盐能够特异性的阻断脂肪积累的缘故。虽然所有的这些研究结果都很令人感兴趣，但是我们还需要更大规模的研究来证实丙酮酸盐确能够降低体重。

丙酮酸盐

膳食纤维 (Fiber)：膳食纤维对于多种肠道功能（比如消化和废物排出）十分重要，并且有轻度的降脂效果。它也可能有助于减低体重，这有可能是因为其能够使胃填充，产生一种饱胀感，并且只提供很少或不提供热量。另外一个可能的原因是纤维还可能干扰脂肪的吸收。纤维有两种类型：可溶性纤维和不可溶性纤维。可溶性纤维富含于亚麻籽，苹果和燕麦麸。其他大多数的植物类食品均含有不可溶性纤维。一些双盲研究对纤维辅食降低体重方面进行了评估。结果略有出入，但总体上表明某些种类的纤维可以轻度的促进体重下降。在其中的一项双盲研究中，97名轻度超重的女性被给予了严格的低热量饮食11周，饮食中还包含了安慰剂或一种不可溶解纤维（每天三次，每次2.3g）。结果安慰剂组平均体重降低了3.1kg，而膳食纤维组降低了近5kg。与安慰剂组相比，膳食纤维组的成员较少出现饥饿感。在接下来的16周时间中，他们的饮食被改为高热量饮食。正如预期，在此期间参加者体重有所回升。虽然如此，在第16周末时，膳食纤维组仍然比试验开始时平均轻了3.6kg，而安慰剂组只轻了2.7kg。注意：纤维辅食必须与水一同进食，否则其可能阻塞消化道。即使合理的服用，也可能出现轻微的胃肠道副作用，比如胀气、腹胀。

膳食纤维

参考文献

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最后修改日期 : 2018-3-7