US reference values, smarter timing tips, tidier warnings

The latest update to Stack Almanac brings your reference values in line with where you live, sharpens the timing advice you get for each supplement, and gives you a bit more control over the noise on the Stack page. If you are in the US, the Almanac now cites US NIH reference values for your nutrients by default. If you are anywhere else, the region picker in Account lets you set it explicitly. And your interaction warnings are now dismissible once you have read them.

What reference values does Stack Almanac use for my nutrients?

Stack Almanac now cites nutrient reference values from your own region. US users get US NIH ODS values (the ones your doctor and the label on your bottle refer to), UK stays on SACN, and there is now an EU option too. Anything not curated for a specific region falls back to UK, so the Almanac never leaves you without a reference.

You can set your region yourself under Account → Your region. The first time you open the app, the Almanac makes a best guess from your timezone, but it will never override a choice you have made explicitly. Your region also tailors which restock offers you see, so a US user browsing Vitamin D options is not looking at UK-only shops.

If you are pregnant or nursing, US NIH values include the specific life-stage figures where they differ from the general adult reference, and the Almanac Advisor uses those where relevant.

Why do timing tips now name a specific ingredient?

When Stack Almanac tells you a supplement is better in the morning or the evening, better with food or on an empty stomach, that guidance is now driven by curated ingredient data whenever the product's ingredients are recognised. Instead of guessing from the product name, the tip names the ingredient responsible and ranks by evidence level, e.g. "Magnesium is sedative, evenings suit it."

For products the Almanac does not yet have curated ingredient data for, timing tips still work from the name, but curated signals now suppress the false positives that name-only guessing sometimes produced. The overall result: fewer confusing tips, and clearer reasons behind the ones you do see.

Can I dismiss interaction warnings I have already read?

Yes. On the Stack page, each interaction warning now has a small × that hides it. Once you have read a warning and decided how to handle it, you can tuck it away instead of scrolling past the same amber row every time you open the page.

If you dismiss all of them, the whole amber banner collapses to a quiet "N warnings hidden · Show" restore row, so you never lose access to something you dismissed. A fresh clash from a supplement you add tomorrow shows up as a new warning, not a hidden one, so genuinely new things still surface. Synergies (the positive ones) are not dismissible on purpose.

Related tidy-up on Today: the "Save up to £N/mo" line now takes you straight to the price comparison panel on the Stack page, instead of dropping you at the top and making you hunt for it. The panel pulses briefly when you land, so you know exactly which section the savings figure came from.

What smaller changes came with this update?

A handful of quieter improvements alongside the headline features.

Share Stack Almanac from Account. A new Share section under Account → Settings sends the app to a friend via your phone or browser's normal share sheet, with a copy-link fallback for browsers that do not support it.

Failed bottle scans no longer cost a credit. If a scan cannot complete, the credit stays yours to try again. The charge only lands once a scan succeeds.

Bottom navigation stays pinned on iPhone. The nav bar no longer drifts up the page while you scroll on iOS. It stays where you expect it, at the bottom of the screen.

Move-time warnings stand out. When you move a supplement to a time that clashes with how it works, the warning is now a contained amber alert that also tells you where the supplement fits better, so the caution and the suggestion travel together.

Your auto-log preference is respected everywhere. If you have turned off automatic assumed logging in Settings → Tracking, the Almanac now honours that across every logging path, not just some of them.

How do I start using this?

Open Stack Almanac. If you are in the US, your nutrient references will already be US NIH values. If you want to check or change your region, head to Account → Your region. The updated timing tips, dismissible warnings, and share option are all live the moment you open the app. No update to install beyond that.