Why is it important to check expiration dates on herbal supplements?

• A. To verify the batch number.
• B. To monitor flavor changes.
• C. To know the price.
• D. To ensure potency and safety, as expired products may lose potency or become unsafe.

Answer: (D)

Expiration dates on herbal supplements indicate how long the product is expected to maintain its potency and safety. The active constituents in herbs can degrade over time, and factors like heat, light, and moisture speed up this process, so after the date the labeled dose may no longer be reliable and the product could be less effective. In some cases, degraded ingredients or contamination can pose safety risks, including adverse reactions. Checking the date helps ensure you’re taking a product that will deliver the expected effect without undue risk. While batch numbers, sensory changes, and price relate to other aspects like recalls, quality perception, or cost, they do not reliably indicate potency or safety.