Functional mushroom supplements aren’t hard to find. You can buy products that’ll help you feel clear and steady, but then, a worrying thought pops up in your head: Does mushrooms come up in a drug test?
That worry makes sense. After all, people often mix up psychedelic mushrooms with functional mushrooms, and vice versa. One type can be illegal, depending on where you reside. The other sits on wellness shelves next to vitamins.
So, today, we’ll take you through legal functional mushrooms, such as Lion’s Mane, Chaga, Reishi, Cordyceps, Turkey Tail, Shiitake, Maitake, and King Oyster. We’ll explain to you whether these mushrooms and supplements made from them show up on normal drug tests.
1. What Do Drug Tests Look For?
Most standard drug tests have a very narrow job. They don’t scan your entire body. They only look for a small list of specific substances. Common tests check for:
- THC from cannabis
- Cocaine
- Opiates or opioids
- Amphetamines or methamphetamines
- Other controlled drugs, depending on the panel
Different samples can be used:
- Urine tests for common work and sports
- Blood tests are more medical or legal
- Hair tests may look back over a longer time
These tests look for controlled substances, not daily nutritional supplements.
So, whenever you take functional mushroom supplements from trusted sources, such as the ones we’ve got in our Mushroom Supplement collection, you’re not taking drugs that these tests target.
2. Do Functional Mushrooms Show Up in a Drug Test?
Let’s start with the shortest and the most precise answer: no, functional mushrooms never show up on standard drug screenings.
Why?
Functional mushrooms don’t contain “mind-altering” compounds that make you feel “high.” They’re very different from psychedelic mushrooms.
Functional mushrooms:
- Don’t contain psilocybin
- Don’t change your sense of reality
- Don’t act like the drugs searched for in tests
If you want a deeper, scientific breakdown of how these mushrooms work in the body, you can check out the following:
The idea is simple: drug tests prioritize drugs. Functional mushrooms aren’t drugs. They’re legal wellness supplements.
3. Will Lion’s Mane, Chaga, Reishi, Cordyceps, or Turkey Tail Affect a Drug Test?
Do mushrooms show up on a drug test? Let’s take a look at these mushrooms one by one. It’ll clear things up and eliminate all doubts.
Lion’s Mane
Lion’s Mane is famous for improving focus and clear thinking. It doesn’t make you high, and it doesn’t change your sense of reality.
People use it to support brain health and mental clarity. Check out our Lion’s Mane mushroom supplements here. It doesn’t contain psilocybin or THC. It doesn’t show up on standard drug tests.
Reishi
Reishi is often called the “mushroom of calm.” People use it to unwind and support better rest. It may help you feel more relaxed, but it doesn’t intoxicate you or make you feel “out of it.”
It’s non-psychedelic and doesn’t show up as a drug.
Chaga
Chaga looks like a dark chunk of bark on birch trees. Folks use it to support overall wellness and healthy aging.
Just like the other mushrooms described above, Chaga doesn’t contain psilocybin. It’s completely legal. Standard drug tests don’t look for Chaga or its natural compounds.
Cordyceps
This one is known for energy and stamina. Many people use it before workouts or busy days. It can help you feel more “awake” in a natural way instead of like a drug.
Want to learn more? Check out our Cordyceps Mushroom Supplements here.
Cordyceps doesn’t alter the mind. It won’t trigger a standard drug test, either.
Turkey Tail
Turkey Tail looks like a layered fan of colors on fallen logs. People often take it to support immune health and daily balance. If you want to try Turkey Tail Mushroom Supplements, find them here.
Just like all the others, Turkey Tail is a purely functional mushroom. It doesn’t act like a drug and doesn’t show up like one.
We’ll simplify the whole thing further with this table:

4. Do Mushroom Supplements Contain Anything That Might Trigger a Drug Test?
Good question! Sometimes the mushroom itself isn’t the problem. The issue can come of something else mixed in the supplement.
High-quality brands work hard to keep formulas clean and clear. For instance, Essential Mushrooms focuses on:
- No grain fillers
- Organic mushrooms
- Grown and made in the USA
- Real mushroom fruiting bodies, not just mycelium and grain
You can see blended formulas here:
- Mushroom Blends
If you need help with how to use mushroom supplements in your day, read our blogs on:
- Best Way to Take Mushroom Supplements
- Do Mushroom Gummies Work?
When you choose a clean supplement devoid of strange add-ins and intoxicating elements, you make drug test worries smaller.
5. What About Psychedelic Mushrooms?
This is where the confusion starts, as we’ve already mentioned earlier.
Psychedelic mushrooms, often called “magic mushrooms,” contain a substance called psilocybin. This compound may change the way you see and feel the world. In many locations, psilocybin is still illegal.
Standard workplace tests don’t always include this substance, but special tests can detect it. Those tests don’t happen by accident. Someone has to plan and order them on purpose.
The key difference:
- Functional mushrooms are legal, non-psychedelic, and wellness-focused
- Psychedelic mushrooms may be illegal, mind-altering, treated as drugs, and may show up in mushrooms drug test
Check out our blog “Are Functional Mushrooms Legal?” for a clear breakdown of the legal side of functional mushrooms.
6. When to Avoid Taking Any Supplements Before a Drug Test
Functional mushrooms might be safe for testing, but you still need to be careful with any new supplement before an important test.
Here are a few simple tips:
- Avoid consuming brand-new supplements right before testing.
- Maintain a steady routine.
- Ask your employer or someone from the lab if you’re unsure.
Conclusion: Functional Mushrooms and Drug Tests
Does mushrooms come up in a drug test? Let’s put it all together.
- Standard drug tests look for a small list of controlled substances.
- Legal functional mushrooms like Lion’s Mane, Reishi, Chaga, Cordyceps, and Turkey Tail aren’t on that list.
- Clean mushroom supplements, with no THC or hidden extras, don’t show up as drugs.
So, if you use functional mushrooms for focus, energy, immune support, or balance, you can usually relax about drug tests, especially when you choose trusted, properly-labeled products.
The more you understand what drug tests really look for, the easier it becomes to enjoy the benefits of functional mushrooms.
