Vitamins don’t “expire” in the traditional sense. Instead of becoming unsafe to ingest, they simply become less potent. That’s because most of the ingredients in vitamins and dietary supplements break down gradually.

How long do herbal supplements last after expiration date?

If stored away from heat, light and humidity, supplements generally last about two years after the date of manufacture before the concentrations fall below 100 percent of the amounts listed on the label. But the window is only about a year for probiotics, liquids and oils, which are more fragile.

What happens if you take expired herbs?

Dried herbs and spices don’t truly expire or “go bad” in the traditional sense. When a spice is said to have gone bad, it simply means that it has lost most of its flavor, potency, and color. Fortunately, consuming a spice that has gone bad is unlikely to make you sick.