Shopify Liquid - What would be the equivalent of this JS code in liquid?

Question

Liquid seems to be very restrictive and I am not really able to figure out how to get the liquid equivalent of the below JS code:

const allIngredients = {
   vitamin_c: {
     title: "Vitamin C",
     description: "Some text here",
   },
   vitamin_k: {
     title: "Vitamin K",
     description: "Some text here",
   }
}

const productIngredients = ["vitamin_k"]

productIngredients.map(ingredient => {
  console.log(allIngredients[ingredient])
});

Update:

I have multiple products and each product comprises of multiple ingredients. These ingredients are stored in product.Ingredients.

Structure:

{
  "vitamin_c" => { 
    "ingredient_title" => "Vitamin C",
    "ingredient_description" => "Some text here"
  },
  "vitamin_k" => { 
    "ingredient_title" => "Vitamin K",
    "ingredient_description" => "Some text here"
  },
  ...
}

In the product metafield, I am adding the keys of the above json i.e. vitamin_c and vitamin_k.

Now what I want to do is to map the metafield values with the product.Ingredients json and print the ingredient_title and the ingredient_description on my page.

Thanks for the help!