如何使用扩展语法从JSON文件创建变量？

Question

{
    "eggs":{
        "protein":5.5,
        "count":10,
        "serving":3,
        "_comment":"Serving is per eggs"
    },
    "chicken":{
        "protein":23,
        "weight":900,
        "serving":4.5,
        "_comment":"Serving is per 100 grams" 
    },
    "kwark":{
        "protein":8.5,
        "weight":1000,
        "serving":2
    },
    "milk":{
        "protein":3.5,
        "weight":2000,
        "serving":1
    },
    "oats":{
        "protein":14,
        "weight":450,
        "serving":1
    },
    "cottageCheese":{
        "protein":19,
        "weight":200,
        "serving":1
    }
}

Json对象名为

const nutrition = require("./nutritionalValues.json");

调用json对象在同一文件中工作。

现在我想要做的是创建与JSON对象的键名称相同的变量。所以

Object.keys(nutrition) // ["eggs", "chicken", "kwark", "milk", "oats", "cottageCheese"]

可以立即分配变量

let {eggs, chicken, kwark, milk, oats, cottageCheese} = nutrition;

但是如果我在JSON文件中有数千个项目怎么办？如何以编程方式创建这些变量？和/或有更好的方法来管理它吗？