Every version of Nutrient Logger up to this point has followed the same pattern: add more nutrients, add more charts, add more ways to see your data. More visibility, more visibility, more visibility.
v4.0 is the first release where I stepped back and asked a different question: does seeing the data actually change anything?
For a lot of users, the honest answer was no.
The gap between seeing and doing
I’d get emails and reviews from people who loved the depth — 80+ nutrients, trend charts, the whole picture. But when I actually watched how people used the app (and, if I’m honest, how I used it), a pattern showed up. You’d notice you were low on magnesium for a few weeks. You’d think “huh, I should fix that.” And then nothing would happen, because the app’s job ended at showing you the number.
That’s a tracking app, not a nutrition app. There’s a difference.
Same story on the body side. You could log your weight every day and watch a line go up or down, but the app never told you what to actually do with that information — what calorie target gets you to your goal, or whether you’re even on pace.
v4.0 is about closing that gap. It’s less “here’s more data” and more “here’s what the data means and what to do about it.”
What actually changed
Deficiency insights, not just deficiency charts. There’s now a weekly digest that tells you flat out: you’ve been consistently low in vitamin D and magnesium this week, and here are foods that would help. You don’t have to notice the gap yourself and go digging — the app surfaces it and hands you the fix.
Body goals with an actual plan. The Body tab now calculates your BMR and TDEE from your stats, gives you a suggested calorie target based on your goal weight and deadline, and shows a pace tracker so you know if you’re actually on track — not just a chart of where you’ve been. Weight and body fat tracking existed before; the “so what do I do about it” part didn’t.
Habit tools that are actually visible. Streaks existed before v4.0 too, buried on the dashboard. Now they’re a real part of the app — front and center on Nutrition and Body, with animations when you hit a milestone, and an Achievements card on your profile that tracks longest streak, days logged, unique foods tracked. None of this is fluff. A deficiency digest is useless if you stop logging after four days, and gamification is the only part of the app whose entire job is to keep you showing up long enough for the rest of it to matter.
A structure that matches the shift. The app is now three tabs — Nutrition, Body, Profile — instead of a dashboard that tried to hold everything. Food search lives in Nutrition where you’re already logging. Weight, body fat, BMI, and goals live in Body, where the new TDEE and pace-tracking tools actually make sense next to the data they’re built on.
There’s also CSV export now, which came directly from users tracking for medical reasons — sharing a clean export with a doctor or dietitian shouldn’t require screenshotting a chart.
Why this took a full version, not a feature update
Because it’s not really a feature. It’s a different opinion about what the app is for. Up through v3.11, Nutrient Logger’s job was to be the most thorough food log you could get. v4.0’s job is to be thorough and tell you what to do with what it finds. That meant touching almost every screen, not bolting something new onto the side.
I built this app in the first place because I couldn’t find a tracker that took micronutrients seriously. v4.0 exists because tracking seriously isn’t enough on its own — the point was always to actually be better nourished, not to stare at a very detailed chart of not being better nourished.
If you’ve used Nutrient Logger before, this update should feel like the same app, just less passive. If you haven’t, this is a good time to start.
Nutrient Logger tracks 80+ nutrients completely offline, and now tells you what to do about what it finds. Your data never leaves your device.