In pregnancy a high fibre diet is doubly important.

怀孕期间高纤维饮食倍加重要。

《柯林斯英汉双解大词典》

The therapeutic effects of a high fibre diet composed of naturally high fibre foodstuffs containing protein, various essential amino acids and trace elements (Zn, Cr etc. )

以天然食物配制的高纤维食品含较高的粗纤维及蛋白质，并富有多种必需氨基酸和锌、铬等微量元素。

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Our diet also tends to be too high in fat, sugar and salt, and too low in fruit and vegetables that contain fibre and essential vitamins and minerals.

我们总是食用高脂肪，多糖和多盐的食物，但是含有纤维、基本的维生素和矿物质的水果和蔬菜实在是太少了。

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However he said it had been established that eating a balanced diet, which was high in fibre plus plenty of fruit and vegetables, lowered the risks of developing many forms of cancer.

BBC: NEWS | Health | Broccoli chemical's cancer check