To me, it sounds more like "the meat of the article". Perhaps "juice" is a spin-off, which frankly, I have not heard before.

style - What's the difference between academic and journalistic writing ...
https://writing.stackexchange.com/.../whats-the-difference-b...
In journalistic writing you write in what's called the inverted pyramid style. The 'meat' of the article will almost always be in the first paragraph, called the lede [or lead. Sometimes called a whatta (as in "what it's all about") or a nut graph, as in ("in a nutshell")]. The lede should be a paragraph that's so dense it could choke a ...
Clickbait and Sensationalism | AstroWright - Sites at Penn State
sites.psu.edu/astrowright/2017/06/23/outrage-and-sensationalism/
Jun 23, 2017 - Whether you find this to be outrageous or just a fact of business probably depends on how exposed you have been to it. I imagine most journalists take it as a given that headlines and ledes must generate clicks and scrolls in order for them to have jobs, but that what really matters is the meat of the article.