You probably think about your pancreas when you think about blood sugar. Maybe you think about the last thing you ate, the walk you skipped, or the stress of the week. Most people do not think about the quiet organ sitting under the right ribcage. The liver blood sugar connection works behind the scenes every hour of every day.
Your liver stores glucose when you have plenty and releases it when you need more. It can even make glucose when necessary. This liver blood sugar connection helps explain why glucose can rise when you have not eaten anything. It also shows why liver health and metabolic health share such a close relationship.
Once you understand this connection, some confusing glucose patterns begin to make more sense. Morning readings provide one good example. Insulin resistance and excess liver fat provide another. Your pancreas matters, but it never manages blood sugar alone.
How the Liver Blood Sugar Connection Actually Works
Most people picture blood sugar as a fairly simple process. You eat carbohydrates, blood glucose rises, and insulin responds. Your cells can then use glucose for energy. That explanation leaves out an important player, your liver.
After you eat, your liver can remove some glucose from your blood and store it as glycogen. Think of glycogen as stored fuel that your body can access later. Between meals and overnight, your liver can break down glycogen and release glucose. It can also make glucose through a process called gluconeogenesis.
These jobs help your body maintain an available supply of energy between meals. Insulin helps control the process by signaling the liver when enough glucose already circulates in your blood. A healthy liver responds to that signal by reducing its glucose output. Insulin resistance can weaken that response.
When the liver stops responding normally to insulin, it may continue producing more glucose than you need. Blood sugar can then remain higher even without another meal. That is one reason the liver blood sugar connection matters so much. Blood glucose reflects far more than the carbohydrates you just ate.
The Liver Blood Sugar Connection Behind Your Morning Numbers
I track my own glucose with a continuous glucose monitor. For a while, my morning numbers made absolutely no sense to me. I could wake before sunrise, drink water, eat nothing, and still watch my glucose climb. Nothing I had consumed that morning could explain the increase.
Researchers have studied this early-morning rise for decades. In people without diabetes, the pancreas normally releases enough insulin before dawn to restrain liver glucose production. Diabetes can interfere with that compensation. The liver may then increase glucose output during the early morning, creating the dawn phenomenon¹.
Understanding that changed the way I looked at my own readings. My liver was not mysteriously producing glucose because I had done something wrong that morning. Once I paid closer attention to sleep, hydration, morning movement, and magnesium intake, I noticed a softer rise on my CGM. That reflects my personal experience, so I do not assume everyone will see the same response.
Morning glucose also shows why patterns matter more than one isolated number. A single fasting reading gives you one moment in time. Tracking overnight changes, meals, activity, sleep, and stress can reveal much more. Those patterns can help you ask better questions about what affects your glucose.
When the Liver Blood Sugar Connection Starts Struggling
Here is where the Gray Area comes in. You may sense that something has changed even though routine testing has not provided a clear explanation. Afternoon crashes, cravings, brain fog after meals, and abdominal weight changes can have many causes. None of those symptoms alone proves that your liver or blood sugar has a problem.
Metabolic changes can still develop quietly. One condition with strong ties to insulin resistance involves excess fat inside the liver. Experts now call it metabolic dysfunction-associated steatotic liver disease², or MASLD. Many people still recognize its former name, non-alcoholic fatty liver disease or NAFLD.
Insulin resistance, type 2 diabetes, high triglycerides, abnormal cholesterol, and excess body weight commonly occur alongside MASLD. Metabolic syndrome also raises the likelihood of developing it. The relationship does not stop with liver fat, however. Insulin resistance can also change the way your liver handles glucose.
Normally, insulin tells the liver to slow glucose production when your bloodstream already contains enough fuel. Insulin resistance weakens that message. As a result, the liver can continue adding glucose to the bloodstream. At the same time, metabolic dysfunction can encourage more fat to accumulate inside the liver.
That creates an important connection, but it does not provide a diagnosis. Not everyone with insulin resistance has MASLD, and unexplained symptoms do not automatically point to liver disease. Glucose, triglycerides, cholesterol, blood pressure, and waist measurements can offer useful clues. Looking at those clues together can reveal more than any single number.
The Gut Health Piece of the Liver Blood Sugar Connection
Gut health sits at the center of much of what I do with clients. The liver blood sugar connection gives us another reason to pay attention to it. Blood from much of your digestive tract travels toward the liver through the portal circulation. This route creates a direct physical relationship between your gut and liver.
Scientists also study communication between intestinal microbes and the liver. They call this relationship the gut-liver axis³. Research suggests that gut microbes, their metabolites, intestinal barrier function, and immune signals may influence liver metabolism. Scientists continue studying how those interactions relate to insulin resistance and diabetes.
This research does not mean dysbiosis automatically causes high blood sugar. It also does not prove that correcting the microbiome will correct liver glucose production. Human microbiome research still has many unanswered questions. We need more research before anyone can turn many of these findings into specific treatments.
What happens in the gut and liver clearly does not occur in separate worlds. Food, digestion, microbial activity, inflammation, and metabolism constantly interact. Blood sugar adds another piece to that picture. This connection supports looking at health patterns together instead of treating every symptom as an isolated event.
Herbs That Support the Liver Blood Sugar Connection
Herbalists have turned to certain plants for liver and digestive support for generations. Modern researchers now study some of those plants for metabolic effects too. However, traditional use and clinical evidence do not mean the same thing. Some herbs have much stronger human research than others.
Milk thistle⁴ has a long history of traditional use for liver problems. Its extract contains a group of compounds that herbal and scientific literature collectively calls silymarin. NCCIH reports that some small human studies suggest possible blood sugar benefits in type 2 diabetes. Research on fatty liver and other liver conditions has produced conflicting or insufficient evidence.
That distinction matters. Current evidence does not support calling milk thistle a proven treatment for MASLD or diabetes. Traditional herbal practice can still include it when circumstances make sense. Anyone who takes medications should also discuss concentrated herbal supplements with an appropriate health professional.
Berberine, Dandelion, and Blood Sugar Support
Berberine⁵ has stronger human evidence for its effects on glucose metabolism. Several medicinal plants contain this compound, including Huang Lian, or Coptis chinensis, from Chinese herbal medicine. A meta-analysis examined 20 randomized controlled trials with 1,761 participants. Researchers reported improvements in fasting glucose, HbA1c, fasting insulin, insulin resistance, and two-hour post-meal glucose.
Those findings do not turn berberine into a replacement for diabetes treatment. Berberine can affect blood glucose, so combining it with glucose-lowering medication deserves extra care. Supplements can also interact with prescription medicines through other mechanisms. Your individual medications and health history matter.
Dandelion⁶ root also carries a long history of traditional herbal use. Herbalists have commonly included the root in preparations for digestion and liver support. Modern human research, however, has not established dandelion as a treatment for liver disease or diabetes. NCCIH reports very little human research on its health effects.
NCCIH also describes possible interactions with several types of medication. These include antidiabetes drugs, anticoagulants, antiplatelet medicines, and diuretics. That does not make dandelion a bad herb. It means traditional use, modern evidence, medication safety, and the individual person all deserve consideration.
Herbs can become one part of a larger approach when they fit the person. They cannot compensate for chronically poor sleep, little movement, or eating patterns that work against metabolic health. They also cannot replace appropriate testing or medical treatment. Herbal support works best when we keep those boundaries clear.
Living With the Liver Blood Sugar Connection
Understanding the liver blood sugar connection changes the way we think about glucose. Blood sugar involves much more than eating carbohydrates and asking the pancreas to respond. Your liver stores glucose, releases it, and makes more when your body needs fuel. Insulin helps coordinate those jobs throughout the day and night.
The encouraging part involves what can change. For people with MASLD and excess body weight, gradual weight loss and physical activity⁷ can reduce liver fat. Physical activity can also help even when the scale does not change. Small, consistent changes can therefore matter without demanding perfection.
Food matters as well. Nutrition recommendations for fatty liver emphasize healthy eating patterns and appropriate portions. Guidance also favors unsaturated fats over saturated and trans fats. Choosing more lower-glycemic foods⁸ can support blood sugar management while providing vegetables, fruits, and whole grains.
Sleep and regular movement belong in the conversation too. So do stress, medications, meal patterns, and individual health conditions. No single habit controls the entire liver blood sugar connection. Your patterns over time tell a much richer story.
What the Liver Blood Sugar Connection Can Teach Us
I think about all of this in the context of my faith. There is something deeply humbling about a body designed with this much wisdom built into it. Your liver stores fuel, releases it, and creates more when necessary. You never have to consciously direct any of those processes.
Scripture says we are fearfully and wonderfully made. The more I learn about what happens quietly inside the human body, the more literal those words begin to feel. Understanding the body does not make its design less remarkable. For me, it makes that design even more remarkable.
Your body has a story to tell. Blood sugar represents one chapter, while your liver, gut, sleep, food, movement, stress, and metabolic markers add others. Learning to recognize those connections helps you understand the story instead of fearing one isolated number. That is where becoming the historian of your own health begins.
Work With Charlotte
Your body has a story to tell, and sometimes the clues hide inside patterns that seem completely unrelated. Blood sugar, digestion, energy, sleep, cravings, stress, and daily habits can each add another piece. Looking at those pieces together can help you recognize patterns that you might otherwise miss.
That is what becoming the historian of your own health means. You learn your patterns, track meaningful changes, and begin asking better questions about what your body tells you. If you live in the Gray Area and know something feels off, visit CPL Botanicals to learn how I can help you start putting those pieces together.
Herbally and Holistically Yours,
Charlotte Lange, CNC
CPL Holistics | CPL Botanicals
Resources
- Porcellati F, Lucidi P, Bolli GB, Fanelli CG. “Thirty Years of Research on the Dawn Phenomenon: Lessons to Optimize Blood Glucose Control in Diabetes.” Diabetes Care. 2013;36(12):3860-3862.
https://diabetesjournals.org/care/article/36/12/3860/33148/Thirty-Years-of-Research-on-the-Dawn-Phenomenon - National Institute of Diabetes and Digestive and Kidney Diseases. “Symptoms & Causes of NAFLD & NASH.”
https://www.niddk.nih.gov/health-information/liver-disease/nafld-nash/symptoms-causes - Abdalla MMI. “Gut-Liver Axis in Diabetes: Mechanisms and Therapeutic Opportunities.” World Journal of Gastroenterology. 2025;31(29):109090.
https://www.wjgnet.com/1007-9327/full/v31/i29/109090.htm - National Center for Complementary and Integrative Health. “Milk Thistle: Usefulness and Safety.”
https://www.nccih.nih.gov/health/milk-thistle - Zhao JV, Huang X, Zhang J, Chan YH, Tse HF, Blais JE. “Overall and Sex-Specific Effect of Berberine on Glycemic and Insulin-Related Traits: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.” Journal of Nutrition. 2023;153(10):2939-2950.
https://pubmed.ncbi.nlm.nih.gov/37598753/ - National Center for Complementary and Integrative Health. “Dandelion: Usefulness and Safety.”
https://www.nccih.nih.gov/health/dandelion - National Institute of Diabetes and Digestive and Kidney Diseases. “Treatment for NAFLD & NASH.”
https://www.niddk.nih.gov/health-information/liver-disease/nafld-nash/treatment - National Institute of Diabetes and Digestive and Kidney Diseases. “Eating, Diet, & Nutrition for NAFLD & NASH.”
https://www.niddk.nih.gov/health-information/liver-disease/nafld-nash/eating-diet-nutrition
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