But, I was recently asked how long shakeology is good for. There IS a best by date on the side of the bag so you should start there. But, just in case. Here's the official answer. :)
What is the shelf life of Shakeology?
The shelf life of Shakeology is now 1 year from the time of manufacture. To ensure you always get Shakeology in its most potent state, and at the peak of freshness we decided to shorten the shelf life (the "best before" date on packaging) from 2 years to 1 year.
If unopened, Shakeology should ideally be consumed within one (1) year; however, if opened, ideally within one (1) month.
Answer from: https://faq.shakeology.com/app/answers/detail/a_id/1530/kw/Expiration/~/answer