超加工食品有多糟糕?

遗传学家Giles Yeo详细介绍了超加工食品…

贾尔斯-好的。首先，人们认为加工食品不好，但烹饪是一个过程。发酵是一个过程。所以酸奶是一种加工食品。面包是一种加工食品。加工食品一直存在。然而，超加工食品是经过工业加工的食品，我们无法在厨房或普通餐馆里复制。这些方法包括挤压，用高压清洗机清洗动物的尸体，然后把这些东西加热成粉红色的粘液，诸如此类的东西。这就是超加工食品——但这是我们能吃到的最糟糕的食物吗?

克里斯-我是说，你可以说氰化物可能是你吃过的最糟糕的食物。这对你来说可能更糟。

贾尔斯-但它是一种食物吗?

克里斯:如果它进去了，你吃它是为了吃饱自己，那么我想你可以把它当作食物。你把它吃了。结果不会很好……

Giles -所以我猜超加工食品…好吧。我想说，它们对我们没有毒性。在一定剂量下，它们显然对我们有毒，但大多数东西都是有毒的，但超加工食品是无毒的。所以换句话说，如果你吃了一点点超加工食品，它不会杀死你，而是因为我们吃得太多了。所以问题是为什么。我认为主要原因是因为当你对食物进行超加工时，会发生很多事情。根据你所吃的食物类型，你往往会失去蛋白质和/或纤维。你往往会去掉味道，这就意味着你必须重新加入味道。味道来自糖、脂肪和盐。 These are the holy trinity; yhis is where all flavour comes from. And so ultra-processed foods tend to be lower in protein and fibre. And so therefore are very calorically available, which means that we're able to extract far more calories from it than unprocessed foods, and tend to be high in fat, sugar, and salt. So that is what an ultra-processed food is. And therefore they tend to be bad for you. They tell you you don't want to eat too much ultra-processed foods. Is it the worst food you could have? It depends how much ultra-processed food you're eating. I mean, if you ate an entire stick of butter, I don't think that's going to be great for you, and butter is not an ultra-processed food. And if you ate too many carrots, then you can actually end up turning orange and have this carrot poisoning. And that's not a good thing either. So I think the dose makes the poison. It just so happens in the UK, in North America, we get 50% of our calories at the moment from ultra-processed foods. The problem with ultra-processed foods is the dose that we are actually getting them at.