Can spirulina tablets be eaten one year after expiration?

Patient's question:

History of previous treatment and effectiveness:
Hello expert, bitter gourd spirulina has expired for a year, can it still be eaten? Throwing it away feels too wasteful. What kind of help did you value back then:
Thank you to the experts!

Doctor's answer:

I strongly agree with your feelings. Normally, within their valid period, both medications and health supplements can ensure their quality and efficacy. Bitter melon spirulina is a health product, and the same applies. Expired spirulina is not recommended for consumption: The shelf life of health foods or medications is generally 2-3 years. During storage, the active ingredients gradually deplete. If consumed a year after expiration, it will have no effect and may even cause side effects, so it is not recommended for consumption.

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