同一物，另一極端，極端使用就會造成極端效果，在這裏對個例分享的常用的反駁手段都是找出極端效果來，那是很容易的事。

https://www.livestrong.com/article/480939-can-ground-flaxseed-cause-obstructed-bowels/

 

What is Flaxseed?

Flaxseeds are tiny, dark seeds that are around the size of a sesame seed. You can often find them whole in multigrain breads or in certain cereals. Flaxseeds can be purchased whole or ground, and are also available as over-the-counter dietary supplements. Because you can purchase them without a prescription, flaxseeds are a popular natural source of dietary fiber. According to Medline Plus, this is their most common reported use. However, like any supplement ground flaxseeds can cause unpleasant side effects, including severe constipation.