If you’re scrolling through wellness content on TikTok, chances are you’ve come across a supplement called berberine. It first broke out when the GLP-1 craze was first gaining steam and was often called “nature’s ozepic.” However, it’s also seen as a natural alternative to metformin, a prescription drug used to lower blood sugar levels in people with type 2 diabetes. It’s clear that berberine has become the “it” natural supplement for blood sugar balance, weight management, and metabolic health. But is it actually a solid, natural wool for metformin?
Read on to see how they compare, where they differ, and whether berberine has additional health and longevity benefits.
Berberine 101
First, let’s get a little familiar with the modern supplement. Berberine is a compound found in certain plant species and has been used in traditional medicine for centuries in Eastern cultures.
“It appears to help lower blood sugar by reducing glucose production in the liver and improving insulin sensitivity,” he says. Brittany Brown, RD, IBCLC, CDEmedia nutritionist based in Nova Scotia. “One proposed mechanism is the activation of an enzyme called AMP-activated protein kinase (AMPK), which plays a key role in regulating metabolism (aka the way the body produces and uses energy). He adds that recent research has explored its potential role in reducing inflammation in the gut lining.
Additionally, berberine has been shown in some studies to:
How are berberine and metformin similar?
Similar to berberine, metformin works by activating AMPK, although through slightly different biological pathways. “Metformin is commonly prescribed to manage insulin resistance in type 2 diabetes and polycystic ovary syndrome (PCOS),” says Brown, and berberine is also being studied for its potential role in managing these conditions.
In an animal study Looking at the two, berberine was more effective at reducing high cholesterol and triglycerides, while metformin was found to be more effective at managing blood glucose levels. In addition, the two had identical effects on fatty liver and atherosclerosis (a condition in which plaque builds up in the walls of arteries, causing them to harden and narrow). With these points in mind, results from animal studies do not necessarily translate to humans. However, the researchers concluded that berberine may have therapeutic potential in the management of metabolic diseases.
Also worth noting: Metformin is also being studied for it promising antiaging resultsalthough research to date is inconclusive. Similarly, some Animal research suggests berberine’s antiaging potential, although human trials are needed to provide further evidence.
Is it valid to call Berberine “Nature’s Metformin”?
Although both share some similar mechanisms, they are not interchangeable. “While both appear to affect blood sugar regulation and insulin sensitivity, they differ in strength, consistency, and level of evidence,” says Brown. Metformin has been widely studied and tested as a safe first line of defense against type 2 diabetes, while berberine has not been as thoroughly researched. “Metformin has more predictable and significant effects that are consistently demonstrated by clinical evidence,” Brown continues.
Berberine is not the first line of defense against type 2 diabetes or any other disease, and it is not a 1-for-1 replacement for metformin. (Per a meta-analysismetformin and similar drugs outperformed berberine for glycemic control.) That said, research to date demonstrates berberine’s potential to support well-being on many fronts—including, but not limited to, blood sugar and weight management, as well as reducing inflammation.
Before taking berberine, Brown suggests doing your due diligence to buy from a reputable brand. “When my clients choose to use a supplement, I strongly encourage them to choose one that has been reviewed by a third party to ensure quality and safety,” she says. If you’re interested in trying berberine for yourself, it’s also wise to check with your healthcare provider to see if it’s right for you, specifically if you don’t need prescription alternatives.
The bottom line
Unlike many wellness trends on TikTok, berberine actually promises to benefit your health in some impressive ways. With growing interest in the supplement, we’re sure to see more research on it—and perhaps even discover further possibilities that benefit additional aspects of health.
Overall, berberine isn’t a miracle drug for metabolic health or longevity, but it’s also not just hype. For the right person, under the right guidance, it can be an important tool. “At this point, the evidence is not strong enough to make definitive claims about longevity, but we do know that improving blood sugar regulation and reducing chronic inflammation are important for long-term health,” shares Brown. “If berberine supports these processes, it may play a role as part of a broader approach to health.”
