Product Tests Select a Review CL Answers  Warnings  Encyclopedia Where to Buy News

ConsumerLab.com Answers  

Question:
Can heat and humidity destroy whey protein and other sports nutrition supplements (e.g., creatine, BCAAs, digestive enzymes) during shipping or while storing at home?

Answer:
If in a dry, powder form (tablets, capsules and powders for scooping), supplements containing whey protein, branched-chain amino acids (BCAAs), creatine, and/or digestive enzymes are quite stable and should not degrade unless temperatures exceed 115° F (46° Celsius). However, once they are opened, they can be affected by humidity. Moisture levels above 10% can cause protein, amino acids and creatine to begin to degrade. To reduce exposure to moisture, especially in humid climates, it’s best to store powdered products in several small containers rather than one large container. Do not store these supplements in the refrigerator, because if you remove them and leave them open, moisture may accumulate due to condensation.

On the other hand, liquid supplements containing these ingredients, such as ready-to-drink sports drinks, are generally more sensitive to heat and can become unstable and degrade quickly. For example, tests by ConsumerLab.com found a liquid creatine product to contain little creatine and a large amount of a degradation form of creatine. If you live a hot climate, it may be preferable to refrigerate these, particularly after opening.  

For more information about using supplements containing protein, BCAAs and creatine, plus our tests of these products, see the Review of Protein Powders and Drinks and the Review of Muscle Enhancers (Creatine and BCAA).

Information about the effects of heat on other types of supplements, and how to store them, can be found here.


See other recent and popular questions >>
COMMENTS


Share your thoughts and comments about this topic in the space below. Please abide by the following rules:
  • If you make a statement of fact, such as whether a type of treatment does or does not work, state your basis -- such as personal experience or a published study.
  • If you make a positive or negative comment about a product, note whether or not you have a financial interest in the product or in a competing product.
  • Please be respectful in your tone.
  • Please do not submit any type of HTML markup or scripting as it will not be accepted, nor will comments that exceed 2,500 characters.
Comment:

Share your thoughts and comments about this topic in the space below. Please abide by the following rules:
  • If you make a statement of fact, such as whether a type of treatment does or does not work, state your basis -- such as personal experience or a published study.
  • If you make a positive or negative comment about a product, note whether or not you have a financial interest in the product or in a competing product.
  • Please be respectful in your tone.
  • Please do not submit any type of HTML markup or scripting as it will not be accepted, nor will comments that exceed 2,500 characters.
Comment:

You can modify your comment below. Please be aware the comment will have to approve the changes before they will be shown:
Comment:

Your edit has been submitted and is being reviewed by ConsumerLab.com prior to publication.
This CL Answer initially posted on 9/17/2014. Last updated 8/8/2017.
ConsumerLab.com members may submit questions to CLAnswers@ConsumerLab.com. We read all questions and try to answer those of popular interest.

 
Popular Reviews
CoQ10 and Ubiquinol Supplements
CoQ10 and Ubiquinol Differ in Quality, Absorption & Cost
Turmeric and Curcumin Supplements and Spices
31% of Turmeric/Curcumin Products Fail CL's Tests
Green Tea Supplements and Drinks
Check the Strength and Purity of Green Tea Supplements, Teas, and Drinks


ConsumerLab.com Encyclopedia

In addition to our product reviews our encyclopedia covers the following:

Follow us on...

 
 
Join |  Sign In
   
Join Us on Facebook! Join Us on Instagram! Join Us on Twitter! Join Us on Google+! Join Us on YouTube! 
Product Tests
Brands Tested
Health Conditions
Encyclopedia
CL Answers
Clinical Updates
News
Recalls & Warnings
RDAs
Where to Buy Products
Raw Materials Tests
Testing Program
Join CL Today
Testimonials
Join Free Newsletter
Group Subscriptions
Gift Membership
About Us
The CL Seal
CL Survey
Privacy Policy
Sitemap
Contact Us/Help

©2017 ConsumerLab.com, LLC. All rights reserved. A single copy of a report may be printed for personal use by the subscriber. It is otherwise unlawful to print, download, store or distribute content from this site without permission.
ConsumerLab.com name and flask logo are both registered trademarks of ConsumerLab.com, LLC. This site is intended for informational purposes only and not to provide medical advice.