Onnit Is
    NSF Certified For Sport®

    As part of our commitment to transparency and quality, Onnit has partnered with NSF International — one of the leading regulatory bodies trusted by professional athletes — to ensure our products are now NSF Certified for Sport®.

    This means that we are held to the highest standard of rigorous scientific testing. This is just another layer of transparency, showing that Onnit cares not only about our athletes, but our entire community.

    NSF International’s Certified for Sport® helps athletes, coaches, and consumers make educated decisions when choosing sports supplements.

    Which Onnit Products
    are NSF Certified For Sport®?

    Onnit Glutamine - Unflavored (60 serving tub)

    Onnit Glutamine - Unflavored (60 serving tub)

    $21.99$20.89 5% off - You save $1.10

    About NSF Certified for Sport®

    If you use a dietary supplement that bears the NSF Certified for Sport® mark, you can be confident that its contents were thoroughly tested by one of the most respected certifiers in the world. With so many choices on the market, it pays to be cautious. Do your research and look for the Certified for Sport® mark on products.

    Why Choose NSF Certified for Sport®

    The NSF Certified for Sport® program helps athletes make safer decisions when choosing sports supplements. In addition to lot-by-lot testing for over 272 athletic banned substances, products bearing the Certified for Sport ® mark on package must be produced in a manufacturing facility that is inspected twice a year to comply with the U.S. FDA’s Good Manufacturing Practice (GMP) requirements. Label claims are verified and products are tested to verify formulation. The product is also tested for harmful levels of contaminants, such as heavy metals or fraudulent ingredients.


    Certified for Sport® is the only independent third-party certification program recognized by MLB, the MLB Players Association, the NHL and the CFL. The MLB, NHL and CFL clubs are permitted to only provide and recommend products that are Certified for Sport®, and players are urged to only use these products. The certification is also recommended by the NFL, PGA, LPGA, CCES, CPSDA and Taylor Hooton Foundation.

    About NSF International:

    A Public Health and Safety Organization

    NSF International is an independent and accredited non-governmental organization whose mission is to protect and improve global human health. They do this by leading the development of public health and safety standards and by testing and certifying products and systems to those standards.

    Certified products and systems earn the NSF mark, which is respected by consumers, manufacturers, retailers and regulatory agencies. Deeply rooted in science, they are widely recognized as the “gold standard” for quality in areas such as water systems, food safety and health sciences including dietary supplements.

    NSF Takes Their Public Health
    Mission Seriously

    Their mission is what makes them unique in our industry. Their core values, their independence and their focus on human health is what sets them apart from their competitors. It enables them to operate with unwavering integrity.

    Consumers care about the quality and safety of the products they buy, seeking transparency on where their products come from and how they’ve been handled. Now more than ever, it’s critical to have rigorous standards that consumers, government and industry can rely on… and trustworthy organizations to develop them.

    Keep-It™ Money Back Guarantee
    We’re confident you’ll love your Onnit supplements. If the product doesn't perform for you, however, we’re not gonna play games with you. Order any of our entry size supplements, and if you don’t like it, you can keep it! Notify our team, telling us why it wasn't a fit for you, and we’ll get you a refund right there on the spot - no return necessary. We just ask that you try it out for at least two weeks to give it a fair shot.
    Our Keep-It™ guarantee is valid for the first-time purchase of a formula, and redeemable up to three months (90 days) after the purchase date. Multiple bottles, foods, apparel and gear do not fall under this guarantee, however, they may be applicable for return. Fitness equipment, personal care products, knowledge purchases, and DVDs are not eligible for return or refund. For more information and a full list of products that qualify, visit our Keep-It™ page. Further details can be found on our Refund Policy support page.
    Military Discount
    In thanks to our military service men and women, we're extending a 15% discount on all products purchased at Onnit.com.
    Anyone shipping their order to an APO/FPO/DPO address will have a 15% discount automatically applied to their order.
    In order to validate your account, please either send an email from your .mil email address or send in a snapshot of your military ID to our customer service help desk. Blacking out rank and or post is acceptable. In either case, please include the civilian email address or whichever email address you have registered with Onnit.com somewhere in the message body so we know which account to verify. Please setup an account with Onnit.com prior to submitting your request.
    * US Military members, please choose United States as your destination country when creating your customer profile, as this will ensure your package ships via USPS and that you are not given international shipping rates.
    Subscribe & Save 15% now
    With a subscription, you'll get your favorite Onnit products whenever you want, at 15% off. All automatic, worry free, and with our same great money back guarantee.
    Cancel, pause, or adjust your order at any time, hassle free. Your credit card will only be charged when your order ships. The discount applied every time is 15% off. Since it would be weird to subscribe to a kettlebell, the subscriptions and subscription discounts are only for things you'll need often, like supplements, foods, and personal care items.

    Secure Shopping

    We implement a variety of security measures to maintain the safety of your personal information when you place an order or enter, submit, or access any information on our website. We incorporate physical, electronic, and administrative procedures to safeguard the confidentiality of your personal information, including Secure Sockets Layer (SSL) for the encryption of all financial transactions through the website. We use industry-standard, 256bit SSL encryption to protect your personal information online, and we also take several steps to protect your personal information in our facilities. For example, when you visit the website, you access servers that are kept in a secure physical environment, behind a locked cage and a hardware firewall. After a transaction, your credit card information is not stored on our servers.