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Berberine - 1000mg

A dual-form berberine combining standard berberine HCl with phytosome-complexed berberine for enhanced absorption — 1000 mg per serving of one of the most extensively researched botanical compounds in metabolic science, from the brand trusted by over 100 professional sports teams and recommended by more practitioners than any other.

Berberine is not a trend supplement. It is a plant alkaloid with over 5,000 published studies — one of the most researched natural compounds in existence — with a body of evidence spanning metabolic health, blood sugar regulation, lipid metabolism, gut microbiome modulation, and cellular energy pathways. Extracted from the roots of Berberis aristata (Indian barberry), berberine has been used in traditional Chinese and Ayurvedic medicine for centuries, and modern research has confirmed mechanisms that explain why. It activates AMPK (adenosine monophosphate-activated protein kinase) — often called the body's metabolic master switch — the same enzyme pathway activated by exercise and caloric restriction. When AMPK is activated, cells increase glucose uptake, improve insulin sensitivity, enhance fatty acid oxidation, and shift energy metabolism toward efficiency. This is not a marginal effect. The clinical data on berberine's metabolic impact has drawn direct comparisons to pharmaceutical interventions. The challenge with berberine has always been bioavailability. Standard berberine HCl is poorly absorbed from the gut, with estimates suggesting that less than 5% of an oral dose reaches the systemic circulation. The compound is rapidly metabolised by intestinal and hepatic enzymes before it can exert its full effect. This is why many users take berberine for weeks and feel nothing — the dose on the label never reaches the tissues where it is needed. Higher doses compensate partially but increase the gastrointestinal side effects — nausea, cramping, diarrhoea — that cause many people to abandon supplementation before results appear.

Thorne solved this with a dual-form approach. Each capsule combines berberine HCl — the traditional, well-studied form — with berberine phytosome, a patented complex that binds berberine to phospholipids derived from pea, sunflower, and grape seed. Phytosome technology wraps the berberine molecule in a lipid layer that enhances intestinal absorption and protects it from premature degradation, delivering significantly more active compound to the bloodstream than equivalent doses of berberine HCl alone. The combination provides both immediate gut-level activity (where berberine directly influences the microbiome and intestinal glucose absorption) and improved systemic bioavailability (where it activates AMPK in liver, muscle, and adipose tissue). 1000 mg total berberine per two-capsule serving. 60 capsules per bottle — a 15-to-30-day supply depending on dosing.

Thorne is NSF Certified for Sport, third-party tested through four rounds of quality verification, and trusted by over 47,000 healthcare practitioners worldwide. Vegetarian capsule. No gluten, dairy, soy, artificial colours, or preservatives.

People who approach metabolic health with the same evidence-based rigour they apply to training and nutrition choose berberine as a research-backed botanical intervention rather than relying on willpower and dietary restriction alone. It reflects an understanding that cellular metabolism can be supported at the enzymatic level — not just managed through behaviour.

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Take one to two capsules twice daily with meals. Starting with one capsule twice daily for the first week allows your gut to adapt and minimises the gastrointestinal sensitivity (mild cramping or loose stools) that some people experience at the outset. Increase to the full dose after the first week if well tolerated. Taking with food reduces GI side effects and aligns berberine's glucose-regulating activity with the post-meal period when it is most relevant. Do not take on an empty stomach. Consult your healthcare professional before use if taking blood sugar-lowering medications (metformin, sulfonylureas, insulin), as berberine may enhance their effects and require dose adjustment. Do not use during pregnancy or breastfeeding. If taking any prescription medication, consult your doctor — berberine can interact with drugs metabolised by cytochrome P450 enzymes, including statins, certain antibiotics, and anticoagulants. Store in a cool, dry place. Keep out of reach of children. The botanical compound with more published research than most pharmaceuticals — now in the dual-form delivery that finally makes the dose on the label match the dose in your blood.

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