Vitamins & supplements · Storage guide
How long do dietary supplements last? Fridge, freezer & pantry
Storage temperatures: keep the fridge at ≤4 °C (40 °F), the freezer at −18 °C (0 °F), and the pantry cool and dry at room temperature.
| Fridge ≤4 °C · 40 °F | Not recommended |
|---|---|
| Freezer −18 °C · 0 °F | Not recommended |
| Pantry room temp | 1 year |
| After opening | about 6 months |
Times are for unopened, properly stored dietary supplements and reflect best quality. Always use your senses and follow any date on the package.
Signs dietary supplements have gone bad
- Off or rancid smell (especially fish-oil and seed-based supplements).
- Discolouration, crumbling, or a changed texture.
- Moisture or clumping inside the bottle.
When in doubt, throw it out — the cost of a spoiled meal isn't worth the risk.
Best way to store dietary supplements
Keep supplements in their original sealed bottle in a cool, dry place away from light and humidity — the bathroom cabinet is usually too humid. Some (probiotics, fish oil) keep best refrigerated; check the label.
Frequently asked questions
How long do dietary supplements last in the freezer?
Freezing dietary supplements is not recommended — they lose too much texture or quality. Store them in a cool, dry pantry instead, as shown in the table above.
How long do dietary supplements last in the fridge or refrigerator?
Dietary supplements are usually stored at room temperature rather than the fridge — about 1 year in the pantry. Check the table above for the full breakdown.
How can I tell if dietary supplements have gone bad?
Off or rancid smell (especially fish-oil and seed-based supplements). Discolouration, crumbling, or a changed texture. Moisture or clumping inside the bottle. When in doubt, throw it out.
Sources
Shelf-life figures and food-safety guidance are based on these authoritative sources:
Stop guessing
Tired of googling expiry dates?
Expireless tracks your dietary supplements and 1,000+ other foods automatically — scan a receipt or add them once, and get a reminder before anything spoils. No more mental load.
Android · Web · iOS coming soon · Free · No account needed