Flavanoids, flavanols, catechins, isoflavones and anthocyanins are all part of the polyphenolic family (polyphenols). The infographic below shows how this fit together in relation to each other.
The Polyphenolic Family
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Maintaining healthy joints is a top priority for anyone looking to stay active, whether you’re an elite athlete or simply trying to keep up with daily life without aches and pains. Three of the most talked-about supplements in the joint-support category are glucosamine, chondroitin, and MSM (methylsulfonylmethane). They’re often sold in combination pills but each of these compounds works differently in the body. In this post, we’ll break down what glucosamine, chondroitin, and MSM actually are, how they support joint health, and practical tips for choosing the right one - or right combination - for you. What Is Glucosamine? Glucosamine is a naturally occurring amino sugar found in cartilage, the tough tissue that cushions joints. In supplement form, it’s most commonly derived from shellfish shells (glucosamine sulfate) or produced synthetically (glucosamine hydrochloride). How It Works: Glucosamine provides the building blocks for glycosaminoglycans - key components of cartilage. By supplementing with glucosamine, the idea is to support the repair and maintenance of joint cartilage, potentially slowing degeneration. Evidence & Uses: It has been used for relief from the symptoms of osteoarthritis, Numerous studies suggest that glucosamine sulfate may help reduce pain and improve mobility in people with mild to moderate knee osteoarthritis. Dosage: Typically around 1,500mg daily.. What Is Chondroitin? Chondroitin sulfate is another major component of cartilage. It’s usually extracted from animal cartilage sources such as bovine (cow), porcine (pig), or even shark cartilage. How It Works: Chondroitin attracts water into the cartilage matrix, helping it resist compression. It may also inhibit enzymes that break down cartilage, offering a protective effect. Evidence & Uses: Like glucosamine, chondroitin has been studied extensively for osteoarthritis, with many trials showing modest reductions in pain and improvements in joint function. Some research indicates that taking glucosamine and chondroitin together may be more effective than either alone Dosage: Typically around 800mg to 1,200mg daily. What Is MSM (Methylsulfonylmethane)? MSM is an organic sulfur compound found in small amounts in fruits, vegetables, grains, and animal products. It’s known for its sulfur content, which is important for many biological processes. How It Works: Sulfur is a key element in connective tissues, including cartilage, tendons, and ligaments. MSM may support the structural integrity of these tissues and help modulate inflammation. Evidence & Uses: Clinical studies have shown MSM can reduce exercise-induced muscle soreness and joint pain, likely due to its anti-inflammatory effects. Dosage: Common doses range from 1,000mg to 3,000mg per day. Key Differences at a Glance Feature Glucosamine Chondroitin MSM Main Role Cartilage building blocks Cartilage hydration & protection Sulfur source, anti-inflammatory Common Dose 1,500 mg/day 800 - 1,200 mg/day 1,000 - 3000 mg/day Popularly Used For Cartilage repair & maintenance Cartilage cushioning & integrity Reducing pain & inflammation Synergy Works well with chondroitin Works well with glucosamine Often included in multi-ingredient formulas How to Choose or Combine them Identify Your Goals If you are looking for structural support & long-term cartilage health then lean toward glucosamine and chondroitin. If you are looking to reduce pain and inflammation perhaps consider adding MSM. Start with Quality Look for good manufacturing standards, purity of ingredients and potency. Choose shellfish-free glucosamine if you have allergies. Consider Combination Formulas Many joint supplements bundle glucosamine, chondroitin, and MSM to cover multiple mechanisms. A typical combo might be 1,500 mg glucosamine + 800 mg chondroitin + 1,500 mg MSM daily. Monitor Effectiveness Give each supplement at least 4 - 8 weeks to assess effectiveness. Track your symptoms: pain levels, stiffness, range of motion. If one ingredient isn’t delivering, try adjusting the dose (within the intake guidelines). Consult a Professional If you’re on blood thinners, have diabetes, or other chronic conditions, check with your healthcare provider before starting any new supplement. Final Thoughts Glucosamine, chondroitin, and MSM each play unique roles in supporting joint health. Glucosamine acts as a building block, chondroitin helps maintain cartilage integrity, and MSM offers valuable sulfur and anti-inflammatory benefits. For many people, a combined approach delivers the best results, addressing both the structural and symptomatic aspects of joint health. As always, prioritise quality, be patient with timelines, and consult a healthcare professional to create a regimen that’s right for your body and lifestyle. Here’s to staying active and pain-free!
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