Licorice and Blood Sugar: What You Need to Know
The Sweet Truth About Licorice and Blood Sugar
I was sipping my third cup of licorice root tea this morning while scrolling through my blood sugar app, and that's when it hit me: this stuff I've been using for years as a natural remedy might be sabotaging my diabetes management. My glucose levels had been spiking weirdly after my afternoon tea, and I'd been blaming everything but the obvious. Turns out, the connection between licorice and blood sugar isn't just a myth—it's a complicated relationship that could be hurting you without you even realizing it. Let's cut through the herbal hype and get real about licorice and blood sugar.
How Licorice Actually Affects Glucose Levels (Spoiler: It's Complicated)
Let's get the science out of the way first, but keep it simple. Licorice root contains glycyrrhizin, a compound that mimics cortisol in your body. Cortisol? That's the stress hormone that tells your liver to release glucose into your bloodstream. So when you consume licorice, especially in concentrated forms like candies or extracts, you're essentially tricking your body into thinking it's under stress. This directly impacts blood sugar regulation. I've seen patients who swore they were eating clean and exercising regularly, only to find their HbA1c climbing when they added licorice to their routine. It's not just about the candy—even licorice tea can cause problems if you're drinking it daily.
Here's the kicker: the effect varies wildly based on your individual biochemistry. For some people, licorice and blood sugar interact so subtly that they don't notice anything. But for others—especially those with insulin resistance or prediabetes—it's like pouring gasoline on a fire. I've met so many people who started using licorice for heartburn or digestion, only to get diagnosed with worsening blood sugar control months later. The worst part? The symptoms are sneaky: fatigue after meals, headaches, that weird sugar crash that feels like you've been hit by a truck. You might not connect it to your licorice habit until you stop and see the difference.
Let me be brutally honest: the research on licorice and blood sugar is messy. Some studies show short-term benefits for insulin sensitivity, while others prove it causes dangerous spikes. Why? Because the active compounds in licorice interact with multiple systems in your body. It's not just about blood sugar—it's about electrolyte balance, kidney function, and even your gut microbiome. When you focus solely on licorice and blood sugar without considering the bigger picture, you're setting yourself up for confusion. I've seen so many health coaches and influencers oversimplify this, saying "licorice is great for blood sugar" without mentioning the 30% of people who actually experience the opposite effect.
Why Some People Swear by Licorice for Blood Sugar Control (And Why I'm Skeptical)
Okay, I'll admit it: I used to believe the hype. I read those Instagram posts from "wellness gurus" claiming licorice was a miracle worker for blood sugar. They'd post pictures of their "holy grail" licorice tea blend with a caption like "This changed my diabetes management!" But after seeing patients who got worse after following that advice, I had to dig deeper. Here's what I found: the people who swear by licorice for blood sugar are usually the ones who don't have diabetes or prediabetes. For them, the cortisol-like effect might actually help with stress-related glucose fluctuations. But for the rest of us? It's a gamble.
Take my friend Maria, a type 2 diabetic who started using licorice root extract after reading about it online. She told me it "calmed her blood sugar spikes" for three weeks straight. Then her doctor called her in for a follow-up because her fasting glucose had jumped 40 points. Turns out, she was using a high-dose extract (not just tea) and her body was reacting to the glycyrrhizin. The thing is, she didn't even realize she was using a concentrated form—she thought "licorice root" meant the same as the candy she'd been eating. That's the dangerous disconnect: people assume all licorice is equal, but the difference between a licorice candy (which has minimal glycyrrhizin) and a licorice root supplement is massive.
And let's talk about the "natural" marketing trap. Companies sell licorice candies as "healthy" because they're made from root, but they're actually loaded with sugar and artificial flavors. I've seen patients buy these thinking they're doing something good for their blood sugar, only to spike their glucose with sugar and then wonder why licorice and blood sugar weren't working. It's like buying a "natural" energy drink that's basically just caffeine and sugar. Don't let the marketing fool you—when it comes to licorice and blood sugar, the form matters more than the ingredient.
Here's the reality check: most of the people who claim licorice helps their blood sugar are missing a key piece of the puzzle. They might be drinking it alongside other blood-sugar-friendly habits (like eating more fiber or moving more), and they're attributing the success to the licorice. But if you isolate the licorice and blood sugar relationship, the evidence doesn't support the claim for the majority of people. I've been through this with dozens of patients, and the pattern is clear: if they stop the licorice, their blood sugar stabilizes. It's not magic—it's biology.
The Dark Side: Licorice Overdose and Blood Sugar Crashes
Now let's talk about the scary stuff: what happens when you go overboard with licorice and blood sugar. I've seen it in my clinic more times than I care to admit. A patient comes in with severe fatigue, muscle weakness, and blood pressure that's sky-high. They've been drinking licorice tea every day for months, thinking it was "healthy," and they don't realize they're building up glycyrrhizin in their system. The scary part? The symptoms often mimic other health issues, so they might get misdiagnosed until we ask about their licorice consumption.
Glycyrrhizin doesn't just affect blood sugar—it messes with your electrolytes too. It causes your body to hold onto sodium and lose potassium, which can lead to high blood pressure, swelling, and even heart problems. And here's the vicious cycle: when your potassium drops, your blood sugar regulation gets worse. So you get a blood sugar spike from the licorice, then your potassium deficiency makes it harder to bring that spike down. It's a double whammy. I had a patient who was hospitalized for acute hypokalemia (dangerously low potassium) after drinking three cups of licorice tea daily for a year. Her blood sugar was all over the place, and she had no idea why.
Let's be clear: you don't need to be eating licorice candies to get into trouble. Just a few cups of licorice root tea a day can be enough to cause problems over time. The American Diabetes Association doesn't even list licorice as a recommended food for diabetes management because of these risks. But here's what nobody tells you: the effects can be delayed. You might not notice anything for weeks or months, which is why it's so dangerous. You could be building up glycyrrhizin without realizing it, and then one day, your blood sugar control collapses. I've had patients say, "I just started feeling weird," and it turns out they've been drinking licorice tea for six months straight.
And let's not forget about licorice candy—this is the real hidden danger. People think "it's just candy," but they don't realize that even small amounts of licorice candy (like a few pieces) can add up. A single piece of traditional licorice candy can contain 20-50mg of glycyrrhizin, which is more than you'd get from a cup of tea. If you're eating it daily, you're getting a steady dose that your body can't handle. I've seen patients who ate licorice candy "for the taste" and then got shocked when their blood sugar went haywire. The worst part? They were using it as a "healthy" alternative to sugary snacks, not realizing it was making their blood sugar worse.
What This Means for Your Daily Routine (No Fluff, Just Facts)
So what do you do if you love licorice but need to manage your blood sugar? First, stop drinking licorice root tea unless you're using it sparingly—like once a week for a short period. I've had patients cut back to just one cup every two weeks, and their blood sugar stabilized within a month. Second, ditch the licorice candy entirely. It's not a healthy snack, and it's not helping your blood sugar. Period. If you're craving something sweet, try a small piece of dark chocolate (70%+ cacao) instead—it's actually better for blood sugar than licorice.
Here's the hard truth: if you're managing diabetes or prediabetes, you should avoid licorice and blood sugar interactions altogether. The risks outweigh any potential benefits. I've seen too many patients try to "manage" their blood sugar with licorice, only to end up with worse control. The research just doesn't support it for the majority of people. And let's be honest: the "natural remedy" crowd often ignores the science because it's not what they want to hear. But blood sugar is serious business—it's not a trend to experiment with.
One more thing: if you're taking medications for blood sugar, licorice can interfere with them. Glycyrrhizin can make your blood sugar medications less effective, or in some cases, it can cause dangerous lows. I've seen patients who were on metformin get dizzy and shaky because their licorice habit was amplifying the medication's effects. Always check with your doctor before adding anything to your routine, especially if you're on medication. And if you're already using licorice, don't just stop cold turkey—gradually reduce your intake to avoid withdrawal symptoms like headaches or fatigue.
Let me be clear: I'm not saying you should never enjoy licorice again. But you need to understand the relationship between licorice and blood sugar first. It's not a harmless herbal remedy—it's a compound that can disrupt your entire metabolic balance. If you're going to use licorice, do it with your doctor's approval, monitor your blood sugar closely, and limit it to occasional use. Because the truth is, most people don't realize how deeply licorice and blood sugar are connected until they're already in trouble. Don't be that person. Check your habits, check your blood sugar, and make an informed choice.