JSFiddle - React, Tailwind, and code Playground

JavaScript

var obj = {

    "name":"planning Diet",
    "day1":{
        "morning":"chicken",
        "evening":"mutton",
        "night":"Juice"
    },
    "day2":{
        "morning":"burger",
        "evening":"pizza",
        "night":"Juice",
        "late night":"water"
    }

};

function traverse(obj){
   for(property in obj){
       if(typeof obj[property] == "object"){
           traverse(obj[property]);
       }else{
          console.log(obj[property]);
       }
   }
}

traverse(obj);