Check for the expiration date on the packaging of Ferrous Fumarate.
- Disclaimer
"Information here is provided for discussion and educational purposes only. It is not intended as medical advice or product or ingredient review/rating. The information may not apply to you and before you use or take any action, you should contact the manufacturer, seller, medical, dietary, fitness or other professional. If you utilize any information provided here, you do so at your own risk and you waive any right against Culinary Communications Private Limited, its affiliates, officers, directors, employees or representatives.”
NutriBuddy™ 
Description
Ferrous Fumarate is the iron(II) salt of fumaric acid in the form of a reddish-orange powder. It is considered as a dietary supplement.