Two meals can have identical calories and completely different health scores — which confuses people the first time they see it. That gap is the entire point. Calories tell you about energy; they don't tell you much about what a meal is actually made of.
It's not a calorie count wearing a different label
A 500-calorie plate of grilled salmon, greens, and quinoa is not nutritionally interchangeable with a 500-calorie serving of fries and a soda, even though your calorie total for the day would look identical either way. The health score exists to surface that difference — a single number that reflects the quality of a meal, not just its energy content.
What actually goes into the number
The score blends several signals from the same analysis that generates your macros, weighted toward what the evidence on diet quality consistently points to:
Why it's a relative signal, not a grade
The most useful way to read the health score is comparatively — across your own meals, over time — rather than as a pass/fail grade on any single plate. A 6 today and an 8 tomorrow tells you something real about the shift in what you ate. A 6 in isolation doesn't mean you did something wrong; the occasional lower-scoring meal is normal and expected. It's the pattern across a week that's worth paying attention to, the same way the weight trend line matters more than any single day.
The score arrives after your macros, not instead of them
It's stage three of PlateAI's analysis — core macros land first, the health score follows once the fuller nutrient picture is in.
None of this replaces judgment — a score is a compressed signal, not a verdict. But when you're deciding between two lunch options and the calories look about the same, it's the fastest way to see which one is actually doing more for you.