Can you eat moldy protein powder?
Quick Answer
No
Consuming moldy protein powder can lead to food poisoning and other health issues. It’s best to discard any protein powder that has visible mold, an off smell, or has been stored improperly.

What Is It?
Moldy protein powder refers to protein supplement powder that has been contaminated by mold, a type of fungus. This usually occurs due to improper storage, such as in a damp or warm environment.
How to Tell
Signs of moldy protein powder include visible mold growth, a musty or off smell, clumping of the powder, or a change in color.
Why It Can Be Risky
Consuming moldy protein powder poses several health risks.
- Food poisoning: Mold can produce toxins that cause food poisoning, with symptoms like vomiting, diarrhea, and stomach cramps.
- Allergic reactions: Some people are allergic to mold and can experience symptoms like sneezing, itching, and rash.
- Respiratory problems: Inhaling mold spores can lead to respiratory issues, especially in people with asthma or other respiratory conditions.
Safe Method?
The only safe method to deal with moldy protein powder is to discard it. Do not try to remove the mold and consume the rest, as the mold spores could have spread throughout the powder.
Safe Alternatives
If you frequently find your protein powder becoming moldy, consider alternatives like ready-to-drink protein shakes, or protein bars, which are less likely to become moldy.
Storage Tips
Store protein powder in a cool, dry place.’, ‘Ensure the lid is tightly sealed after each use.’, ‘Avoid using wet utensils to scoop out the powder.