一罐沙丁鱼大约一英镑。这是里面的内容。

- 比12英镑的鱼油胶囊含有更多的欧米伽-3（还在鱼里，没有在货架上变质）- 375%的每日维生素B12需求量（地球上每种植物都无法提供）- 三分之一的维生素D需求量（比英国冬天提供的还要多）- 74%的硒需求量（这个矿物质全国一半人缺乏）- 来自鱼骨的钙（无乳制品，软化到你感觉不到骨头）- 25克完整蛋白质（每种氨基酸都存在）- 汞含量0.013ppm（剑鱼的含量高出七十倍）

保健品货架上把同样的沙丁鱼拆成碎片卖给你。一粒油胶囊，一片维生素D片，一罐硒，四十英镑一堆，其中一半还没到家就氧化了。

或者买罐装的。一英镑。整条鱼，一切都在正确的位置。

他们总告诉你超级食物很稀奇又贵。这个东西却一直摆在底层货架上。

A tin of sardines costs about a pound. Here is what is inside.

- More omega-3 than a £12 fish oil capsule (still in the fish, not gone rancid on a shelf)- 375% of your daily B12 (every plant on earth offers none)- A third of your vitamin D (more than a British winter gives you)- 74% of your selenium (the mineral half the country is short of)- Calcium off the bones (no dairy, softened until you can't feel them)- 25g of complete protein (every amino acid present)- Mercury at 0.013ppm (swordfish runs seventy times higher)

The supplement aisle sells you that same sardine in pieces. A capsule of the oil, a tablet of the D, a tub of the selenium, forty quid the lot, half of it oxidising before you get home.

Or the tin. A pound. The whole animal, everything in its right place.

They keep telling you superfoods are exotic and expensive. This one's been on the bottom shelf the whole time.