When your readers reach the end of a post, they face the choice of either leaving or looking for more content.
This has a direct impact on your income as a food blogger: if you can keep them around and generate another pageview, you'll earn more ad revenue.
With the click of button, you can now add "Previous" and "Next" posts to the bottom of your content, giving readers an incentive to stick around, rather than bounce.
This all contributes to a healthy overall site structure for food blogs.
If using Yoast (recommended), you can alter the parent category to change the links being added to the previous + next navigation.