When do protein powders expire

If are asking this question, you have come to the right place. Looking to replace your expired protein powder? If you just found a container of protein powder hiding in the back of your cupboard, you may be wondering: does protein powder go bad?

The answer is yes, protein powder does expire. Although protein powder — if stored properly — does not expire like meat and fresh produce, it absolutely can go bad. Just like any packaged good, protein powder has an expiration date, which should be printed somewhere on the container.

This has more to do with quality than with safety, but safety may be a factor. In this case, quality refers to characteristics like the taste and color of the protein powder, as well as the quality of the protein itself. Keep in mind that the shelf life of unopened protein powder is longer than the shelf life of opened protein powder; protein powder stored in a cool, dry environment will last longer than protein powder stored in a hot, humid one.

In summary, most protein powders are safe to use after the printed expiration date. That said, the quality of the protein powder may start to decline. Generally speaking, the protein itself does not break down much over time, so you should get the nutrition you paid for.

That said, other macronutrients, namely fats, can spoil. If your protein powder smells or tastes rancid, it is probably time to throw it out! Avoiding animal products doesn't have to mean missing out on a quick to-go protein shake or some extra fuel after your workout.

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Basics Shelf life Health risks Bottom line Protein powders are an incredibly popular supplement among health-conscious people. Share on Pinterest. Protein powder basics. What is the shelf life of protein powder? Can expired protein powder make you sick? The bottom line. Read this next. Medically reviewed by Grant Tinsley, PhD. Even more questions: Is protein powder like milk, where you can do a quick sniff-test to determine its likely effect on your gastrointestinal interworkings?

It is made from milk These are the somewhat eternal questions. And your quest for answers—or at least reassurance—is understood. You have, after all, paid kindly for your powdered muscle fuel, but you don't want to pay for protein powder by coming down with some kind of weird stomach thing. Meaning that—unless something has gone seriously wrong—you won't open your old tub of protein powder to find mold, bacterial growth, or a baby Graboid from Tremors.

Not really. That's because a dry environment within the jug makes it nearly impossible for microbes to grow within the powder, says Bob Roberts, Ph.

As for the muscle-building mojo of protein powder, it does diminish after the use-by date has passed. You can blame a chemical reaction called Maillard browning: The protein reacts with sugar left over from when the manufacturers extracted the whey from the milk, resulting in a gradual breakdown of the amino acid lysine.