A member asked:

Is it a bad idea to take expired protein supplements (powder)?

A doctor has provided 1 answer
Dr. Bryan Levey answered

Specializes in Pediatrics

Substances, whether grown in a field or created in a laboratory or factory, change over time. They can lose potency, and/or they can lose nutrient value. The expiration date is the outer edge of when the manufacturer will guarantee potency and/or nutrient value. Beyond that time, you may be taking something that will either not have the desired effect or possibly have a negative one.

Answered Oct 1, 2012

5.6k views

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