How can you tell if Vitamins / Supplements has gone bad?

Signs that Vitamins / Supplements has gone bad: Off smell (especially fish oil — rancid fishy), color shift; Soft or melted gelcaps, crumbling tablets, mold spots.

What does the date label on Vitamins / Supplements mean?

Vitamins / Supplements usually carries a "Use By" date. The last date the manufacturer recommends for peak quality — for most foods this is still quality-based, not a safety cutoff (infant formula is the one exception). See our date-labels guide for the full breakdown.

Household

How long does Vitamins / Supplements last?

Q: How long does Vitamins / Supplements last?

In the pantry: 1–2 years. Sealed / unopened: Check date. Potency degrades after the printed date but they're not typically harmful. Store in cool, dark place.

Medium confidence Package-specific concern

How long does Vitamins / Supplements last? pantry 1–2 years. Plus spoilage signs, sources, and an unopened-vs-opened note.

Fridge

Not recommended

Pantry

1–2 years

Freezer

Not recommended

Sealed / unopened: Check date

Signs Vitamins / Supplements has gone bad

Off smell (especially fish oil — rancid fishy), color shift.
Soft or melted gelcaps, crumbling tablets, mold spots.

Discard immediately if

Tablets crumble when handled
Sharp vinegar smell (aspirin)
Past expiry by more than 2 years

Why guidance varies

Active ingredients degrade at different rates depending on temperature, humidity, and light exposure; manufacturer dates assume controlled storage conditions.

Track this in My Pantry

Get a heads-up before it expires. Search the full database instead.

Sources for this answer

A FDA — Don’t Be Tempted to Use Expired Medicines — Storage windows and refrigeration guidance for this category.
A FDA — Are You Storing Food Safely? — Date-label interpretation and food-safety baseline.

Reviewed: 2026-05 · Rule: if manufacturer storage instructions are stricter than category guidance, the manufacturer instructions win.