Feel Better, for Longer - The Science Behind Aronia
Your metabolism drives your vitality and longevity. To work at its best, it depends on polyphenols; powerful plant compounds naturally rich in aronia berries.
Built on Real Expertise
PhyterBerry is led by our founder and Scientific Farmer, Dr. Steve Collins, a medical doctor, global nutrition expert, and regenerative grower of aronia berries.
Drawing on decades of experience and the latest research, he's translated the complex science of polyphenols and metabolism into clear, practical insight. We've gone back to nature and forward with science.
Feel the Benefits of a Better Metabolism
Your metabolism is more than the rate at which you burn calories, it powers your energy, digestion, immunity, mood, and hormones. And when it's thriving, you thrive too.
Polyphenols help support normal blood glucose levels.
Polyphenols support your natural redox processes.
Polyphenols feed the beneficial bacteria in your gut.
Polyphenols support the body's natural anti-inflammatory processes.
Polyphenols support your body's own immune system.
Polyphenols help maintain healthy blood lipids and circulation.
Polyphenol Benefits, Mapped
Polyphenols help your whole body to thrive. Here’s where you’ll feel the difference.
How Polyphenols Work to Support Your Metabolism
Polyphenols are plant compounds that act in powerful, interconnected ways across your body and are now recognised as essential to optimal metabolic health, from blood sugar regulation to inflammation and energy. Here are the processes behind the benefits.
Polyphenols support stable blood sugar by slowing carbohydrate absorption, increasing GLP-1 levels and improving glucose uptake into cells. This reduces sharp rises and falls in blood glucose that can cause energy crashes and cravings. By encouraging steadier levels and increasing GLP-1, they help your body maintain balanced appetite signals, easier weight control and consistent energy throughout the day.
Blood glucose is your body’s main energy fuel. It’s made when carbohydrates from food are broken down during digestion. That glucose is absorbed into your bloodstream and delivered to your cells, especially your brain and muscles, to power movement, thinking, and recovery. Glucose not immediately needed for energy is stored in the liver and muscles for later use. Keeping blood glucose levels steady helps you feel more energised, avoid crashes, and reduce cravings and lessens the risk of many chronic diseases.
Polyphenols help regulate blood sugar naturally. They slow the breakdown and absorption of complex carbohydrates and increase the uptake of glucose into muscle cells. They also boost gut hormones like GLP-1 (called incretins), which help regulate appetite, improve insulin secretion and sensitivity, and support balanced energy levels, similar to how some medications like Ozempic work, but naturally.
Cellular stress is part of everyday life but too much can wear you down. Polyphenols help keep your cells in balance, supporting the natural redox processes that protect your body from fatigue and damage. This internal equilibrium boosts energy, sharpens focus, and strengthens resilience, helping you feel brighter, clearer, and more vital.
Cellular oxidative balance (or redox balance) is your body’s way of keeping free radicals (reactive oxygen species) at the right levels. These molecules are naturally produced during energy metabolism and can be helpful in small amounts, but when they accumulate, they cause cellular damage. Equilibrium means maintaining just the right balance between pro-oxidant activity and antioxidant defences, enough to support healthy signalling and adaptation to exercise and training, but not so much that it harms your cells.
Polyphenols help your body maintain equilibrium by acting as both direct antioxidants and cellular messengers. They neutralise excess free radicals while also stimulating the production of your body’s own protective enzymes like superoxide dismutase and glutathione peroxidase that detoxify free-radicals. This dual action helps cells maintain balance, produce energy efficiently, and recover more effectively from internal or environmental stress, supporting mental clarity, physical endurance, and long-term vitality.
A well-balanced gut is key to how you feel, from digestion to mood. Polyphenols act as prebiotics, providing food for helpful bacteria that protect the gut lining and reduce inflammation and also encouraging the multiplication of helpful bacteria. They also support microbial diversity, which is linked to better metabolism and a stronger immune system.
The gut microbiome is the name for the trillions of microorganisms, mainly bacteria, that live in the gut, mostly in the large intestine. These microbes influence digestion, immunity, metabolism and even mood. A diverse and balanced microbiome rich in certain beneficial bacteria is essential for overall health.
Polyphenols feed beneficial gut microbes increasing the numbers of beneficial microbes and suppressing less desirable ones. They also help the beneficial microbes to make short-chain fatty acids out of dietary fibre, compounds that strengthen the gut lining, reduce inflammation and support metabolic health throughout the body.
Inflammation is necessary for healing, but when it becomes chronic, it contributes to tissue damage causing discomfort, joint stiffness, and general achiness. Polyphenols help calm this overactivity by decreasing pro-inflammatory messengers and supporting the body’s natural resolution processes. This allows joints to feel freer and more comfortable.
Chronic inflammation is when your immune system stays switched on for too long. Unlike short-term inflammation that helps you heal, chronic inflammation continues even when the body isn’t under threat. This long-term activity can damage tissues and has been linked to chronic illness such as heart disease, diabetes, and arthritis and even to the aging process itself.
Polyphenols reduce pro-inflammatory signals and enhance anti-inflammatory ones. For example, they lower cytokines like IL-6 and TNF and increase IL-10. These messengers regulate the inflammatory process, helping stop inflammation from continuing after it’s no longer needed.
Polyphenols help strengthen your body’s natural defences against bacteria and viruses. They’ve been shown to interfere with how bacteria and viruses enter and replicate in cells, while also supporting immune cells like natural killer cells and T-cells. This dual action makes polyphenols powerful allies in reducing the frequency and severity of infections such as viral infections and urinary tract infections, helping you stay healthier, for longer.
Your immune system protects your body from harmful invaders called pathogens like bacteria and viruses. It includes a complex network of cells and immune molecules such as antibodies, that prevent pathogens from entering into the body or help kill any that do gain access. These various components must stay in balance, active enough to defend, but not so reactive that it causes unnecessary inflammation or tissue damage, as in autoimmune disease.
In addition to modulating inflammation, polyphenols strengthen immunity by fortifying the body’s first-line defences to stop pathogens entering through the gut or respiratory system. They also directly damage pathogens by disrupting bacterial membranes, interfering with fungal growth or stopping virus entering into cell where they replicate. Their direct action to increase beneficial gut bacteria and even indirect action to improve the respiratory microbiome all help prevent pathogens enter the body. This helps maintain your resistance to illness and speeds up recovery should you become infected.
Unbalanced blood fats (lipids) can damage your heart and blood vessels. Polyphenols support healthy fat metabolism by improving the amounts of so called ‘good’ cholesterol (HDL) compared to the so called ‘bad’ cholesterol (ApoB containing LDL, IDL and VLDL). This helps prevent accumulation of cholesterol in the linings of arteries, thereby reducing the risk of atherosclerosis (hardening of the arteries). This helps reduce cardiovascular risk and supports long-term heart health.
Blood fats include cholesterol and triglycerides, essential lipids used for energy and cell repair. These are both contained in the food we eat but also made by the liver before being transported to every cell in the body, with any unused lipid particles taken back to the liver for re-processing. When the levels of lipid delivery are too high and out of balance with the levels of lipid return and clearance from the blood by the liver, they stick to the artery walls. They are then absorbed into the wall and evoke a strong chronic inflammatory reaction leading to the build-up of ‘fatty plaque,’ the cause of cardiovascular disease.
Polyphenols improve the way fats are processed and used in the body. They may help lower LDL (bad cholesterol), increase HDL (good cholesterol), and improve how cells respond to fat-related signals, all contributing to better cardiovascular function. Polyphenol anti oxidative and anti-inflammatory activity also keeps the lining of the arteries healthy making it harder for lipid particles to stick and gain entry in the first place.
What is Metabolism?
Your metabolism is the foundation of your health; a complex system of chemical reactions happening in every cell of your body. It drives your energy, recovery, immunity, and hormone balance. To function at its best, it needs a range of nutrients, including polyphenols, which research shows play a vital role in supporting key metabolic functions.
Explore The Role of Metabolism
What are Aronia Berries?
Aronia berries originate from North America, where they've been used for centuries by Native Americans for health and resilience. Their deep purple colour comes from polyphenols and they contain more than any other fruit or vegetable. Low in sugar, they offer a natural way to top up your polyphenol intake to support your metabolism and health.
Learn More About Aronia
What are Polyphenols?
Polyphenols are natural, protective compounds that help plants survive and thrive and when consumed by humans, they act as natural defenders, supporting our cells and metabolism. Our bodies evolved on diets rich in wild plants and berries, naturally packed full of polyphenols. Today, even healthy diets often don't provide enough for optimal health.
Dive Into The Power of PolyphenolsThe Aronia Advantage
We've always been told to eat our fruit and vegetables for the vitamins and minerals but emerging research suggests it is the polyphenols that deliver many of the most powerful health benefits. Forget turmeric, blueberries, or green tea; aronia berries contain more polyphenols than all of them. And unlike many exotic "superfoods," they thrive naturally on regenerative farms, making them one of the most sustainable ways to support your health.
The polyphenols in aronia, make the plants naturally resilient, requiring no chemical sprays or pesticides; ideal for organic, regenerative cultivation.
Gram for gram, aronia berries contain more polyphenols than blueberries, açaí or pomegranate. They have the highest polyphenol content of any fruit or vegetable.
Unlike many fruits that are high in natural sugars, aronia berries deliver powerful health benefits without spiking blood sugar; perfect for modern wellness needs.
PhyterBerry isn't a synthetically formulated supplement. It is made with organic aronia berries. Just one powerful ingredient, as nature intended.
Scientific research is catching up with what traditional cultures already knew; that berry-rich polyphenol-dense diets are central to long-term health and vitality.
Our bodies evolved to thrive on diets of polyphenol-rich, wild plants and berries, now missing from modern life. Aronia helps restore that lost nutritional link.
Top of the Charts
Aronia berries have the highest polyphenol content of any fruit or vegetable and because of this, they are one of the best researched fruits. Aronia berries have been scientifically shown to provide a wide range of different polyphenols and these have a variety of important health benefits.
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The Science in Motion
Press play for an easy-to-follow animation, showing how polyphenols support your metabolism to deliver real health benefits.
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Support your metabolism by adding more natural polyphenols to your daily routine with PhyterBerry.
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Science shows polyphenols work and our customers feel the difference every day.