AG1 is not FDA approved, and it never will be. That’s not a red flag specific to AG1. The FDA does not approve any dietary supplements before they go to market. This includes multivitamins, protein powders, fish oil capsules, and greens powders like AG1. The regulatory framework for supplements is fundamentally different from the one that governs prescription drugs.
Why the FDA Doesn’t Approve Supplements
The distinction comes down to a 1994 law called the Dietary Supplement Health and Education Act (DSHEA). Under this law, supplement manufacturers are responsible for evaluating the safety and labeling of their own products before selling them. They don’t need to submit clinical trial data or get a green light from the FDA first.
The FDA’s role with supplements is reactive, not proactive. The agency has authority to take action against any supplement that is adulterated or misbranded after it reaches the market, but it doesn’t review or certify products beforehand. This is the opposite of how prescription drugs work, where the FDA must approve a drug before any company can sell it. So when you see any supplement marketed as “FDA approved,” that’s actually a warning sign, because the claim itself would be misleading.
What AG1 Does Have: NSF Certification
Since FDA approval isn’t an option for supplements, third-party certification is the closest thing to an independent stamp of quality. AG1 carries the NSF Certified for Sport designation, which is one of the more rigorous certifications available. NSF is an independent organization that tests products to verify that the powder actually contains what the label says it contains, checks for unsafe levels of contaminants like heavy metals and microbes, and screens for over 295 athletic banned substances.
This certification matters for two practical reasons. First, it means someone other than AG1’s own team has verified the product’s contents. Second, the banned-substance screening is why AG1 markets heavily to athletes. Professional and collegiate sports organizations often require or recommend NSF Certified for Sport products because they reduce the risk of accidentally ingesting a prohibited substance. As of spring 2025, AG1 has made this certification a central part of its branding.
AG1’s Safety Record With the FDA
While the FDA doesn’t approve supplements upfront, it does collect reports of adverse events, which are health problems people experience after taking a product. Over 100 adverse event reports have been filed with the FDA in connection with AG1. Of those, 34 described elevated liver enzymes or liver injury. The FDA began looking into these reports at the end of 2024.
An important caveat: adverse event reports don’t prove that AG1 caused the problems. People who take AG1 also eat food, take medications, and have pre-existing conditions. These reports simply flag a pattern worth investigating. But the volume of reports was enough to prompt the FDA to take a closer look, which is exactly how the post-market system is designed to work.
What’s Actually in AG1
AG1 is a greens powder containing over 70 ingredients, including vitamins, minerals, plant extracts, probiotics, and adaptogens. The sheer number of ingredients is part of the product’s appeal and also part of the concern some experts raise. With that many active compounds in a single scoop, the potential for interactions increases, particularly if you take prescription medications.
Herbal ingredients can interact with common medications, especially blood thinners and drugs for heart conditions or high blood pressure. Signs of an interaction can include a fast heartbeat or blood pressure changes. If you take prescription medications, checking with your pharmacist before adding AG1 to your routine is a practical step, not just a formality. Pharmacists can cross-reference specific ingredients against your medication list in ways that a supplement label can’t.
What “Not FDA Approved” Actually Means for You
The lack of FDA approval doesn’t automatically make AG1 unsafe, but it does shift more responsibility onto you as a consumer. With a prescription drug, the FDA has reviewed years of clinical data before you ever see it at the pharmacy. With a supplement, you’re relying on the manufacturer’s own quality controls and whatever third-party testing they’ve opted into.
AG1’s NSF certification is a meaningful layer of verification that many competing supplements don’t have. It confirms the product contains what it claims and screens for common contaminants. What it doesn’t do is confirm that the product delivers the health benefits suggested by its marketing. No third-party certification evaluates whether a supplement actually improves your energy, gut health, or immune function. Those are claims the company makes based on its own interpretation of ingredient research, and the FDA has limited authority to challenge them unless they cross into explicit disease-treatment territory.
The bottom line: AG1 occupies the same regulatory space as every other supplement on the market. It is not FDA approved because no supplement is. Its NSF Certified for Sport status puts it ahead of many competitors on transparency and purity testing, but the ongoing FDA review of adverse event reports is worth watching as it develops.