Fullscript and Supplement Safety: How to Avoid Fake, Expired, or Contaminated Products

If you take supplements, you already know this space can feel messy. You can buy “the same” product in two places and get two very different results. One works. One does nothing. And worst case, one can be unsafe. That is why I wanted to have this talk with Dr. Eric Viegas, a naturopathic doctor who works with Fullscript on supplement quality.

This matters because supplements are part of real health plans. I use them with bone health patients all the time. But if the bottle does not match the label, your plan breaks.

In this post, I’m going to walk you through what can go wrong, what “quality” actually means, and how Fullscript tries to fix a broken system.

The hard truth: the supplement space can be risky

Most people assume this is simple. You buy a supplement. You take it. You get the benefit.

But the real world is not that clean.

Dr. Viegas explained that common problems include counterfeits, poor storage, products near expiration, and “extra” ingredients that should not be there. The risk is not just “it won’t work.” The risk can be that it is not what you think you bought.

Here are the big issues you need to know about.

The biggest problems I see (and why they matter)

• Counterfeit products
  This is when the label looks real, but the bottle is not. You have no idea what is inside.
• Adulteration
  This is when something is added that is not on the label. Sometimes it is added to “make it work” like a drug, which is not okay. Dr. Viegas gave examples like hidden NSAIDs showing up in joint products.
• Wrong potency
  You might get less than the label says. Or the ingredient may break down over time.
• Bad storage and shipping
  Heat ruins a lot of products. Probiotics and fish oil are big ones. If a probiotic sits warm for days, it may not be doing much when it reaches you.
• Contaminants
  This includes heavy metals, microbes, pesticide residue, and leftover solvents from manufacturing.

That last bullet matters more than people realize. Even “healthy” products like herbs can concentrate pesticides or heavy metals depending on how and where they are grown.

Why regulation feels different in the U.S. vs Canada

A common question is, “Aren’t supplements regulated?”

Yes, but not in the way most people think. Dr. Viegas described the U.S. system as more “post-market.” That means products can hit the market, and then issues are dealt with after complaints or adverse events.

In Canada, the system is more “pre-market” for natural health products. Products typically need a Natural Product Number (NPN) before they can be sold.

Different systems. Different strengths. Either way, the burden still lands on you and your provider to pick good sources.

Why Fullscript exists (and what they are trying to fix)

Fullscript is basically a supplement dispensary platform used by practitioners. The pitch is simple: make supplements easier to access, cheaper, and safer.

But the key word is safer.

Dr. Viegas described several layers Fullscript uses to reduce risk:

What Fullscript says it does for quality

• Brand screening before products enter the catalog
  Their team reviews quality signals, forms, claims, and evidence before listing products.
• Manufacturing standards (cGMP) plus third-party verification
  They look for third-party cGMP certification, not just a label claim.
• Distribution center standards
  Storage matters. Things like refrigeration and humidity matter. They described audits and systems meant to protect product integrity during storage and shipping.
• Extra testing on certain products
  Dr. Viegas said they pull products off shelves and send them to third-party labs to test purity and potency.

Fullscript also documents “badges” to help clinicians and patients filter choices, like Enhanced Testing and Top Pick.

“Fullscript Tested” and “Top Pick” badges: what they mean in plain English

This matters because most people are overwhelmed. There are hundreds of versions of “vitamin D” alone.

Fullscript describes an enhanced testing badge as: the product is pulled from shelves and independently tested beyond baseline catalog standards.

And “Top Pick” is meant to help narrow choices based on factors like quality and patient fit, so you are not stuck scrolling forever.

Here’s the simple version:

• Enhanced testing badge = more verification than average
• Top pick badge = a “short list” choice meant to reduce decision overload

Why buying from big marketplaces can be a problem

Let’s talk about the elephant in the room. Amazon.

Dr. Viegas directly called out Amazon as a place where counterfeits and quality issues can show up. That does not mean every product there is bad. It means risk can be higher, especially if you do not know how to vet sellers and storage.

Even mainstream consumer health sources tell people the safer move is often buying directly from the brand, or using a trusted provider channel, and prioritizing third-party testing.

Amazon has also pushed new policies that require more third-party verification for supplement listings. That’s a step in the right direction, but it does not erase every risk.

A simple checklist to buy supplements safer

If you want a short list you can actually use, here it is.

My practical “buying supplements” checklist

• Buy from a trusted source (brand direct, clinician dispensary, or a retailer with strong quality controls)
• Look for real third-party testing (not just “we test” on a label)
• Be careful with heat-sensitive products like probiotics and fish oil. If it ships warm, that’s a problem.
• Check expiration dates and avoid products with a tiny shelf window
• Be cautious with “hot categories” (fat loss, sexual health, body building, pain, sleep). These are more likely to have adulteration issues.
• If a claim sounds extreme, slow down. “Instant fix” language is a red flag.

If you do just those things, you cut your risk a lot.

Where labs and tech fit in (and why this matters for bone health)

One part of this interview I liked is that Fullscript is not only about shipping supplements. They are also trying to tie supplements to testing and better tracking.

They described ordering labs through the platform and letting patients and providers see results, track progress, and reduce confusion. They also talked about using AI tools inside the platform, with a clear warning: AI still needs validation because it can be confident and wrong.

For bone health, this is the direction we need. Supplements should not be random. They should connect to labs, symptoms, and outcomes.

How this connects to your bone health plan

If you are trying to improve bone health, supplements are usually not the first move. Food, training, and hormones (when appropriate) matter a lot.

But supplements still matter because:

• many people are missing key nutrients
• some people need targeted support
• some people need help with inflammation, gut health, or absorption

The big point is this: if you are going to use supplements, source matters. Storage matters. Quality matters.

Want help pulling this together?

If you want the “big picture” plan, join my free Bone Health Masterclass. I walk through the common mistakes we see, what matters most, and how to build a plan that fits your life.

And if you want deeper support, community, and better day-to-day guidance, consider joining The OsteoCollective.

Medical disclaimer

This content is for education only and is not medical advice. Supplements can interact with medications and may not be right for everyone. Talk with your physician or qualified healthcare provider before starting, stopping, or changing any supplement, medication, or health program.