Your blood vessels
are rusting.
This fixes that.
The 3,500-year-old compound Harvard just proved changes everything about heart and brain health.
A landmark study of 21,442 people found that those who took 500mg of cocoa flavanols daily were 27% less likely to die from cardiovascular disease. The ones who took it consistently? 39% less likely.
That study was run by Harvard. Published in the American Journal of Clinical Nutrition. And the compound they tested is what's in every scoop of Cavora.
The largest flavanol
trial ever conducted.
21,442 Americans. Randomised, double-blind, placebo-controlled. Led by Harvard's Brigham and Women's Hospital. Funded primarily by the National Institutes of Health. Over 3.6 years, researchers tracked every cardiovascular event — heart attacks, strokes, deaths.
People who consistently took 500mg of cocoa flavanols daily were dramatically less likely to die from a cardiovascular event. Not hospitalised. Not treated. Die.
Not a theory.
Documented biochemistry.
Your vessels lose flexibility with age
From your 40s onward, the inner lining of your blood vessels becomes stiffer and less responsive. Blood pressure creeps up, blood flow to the brain decreases, and your heart works harder than it should.
Flavanols trigger nitric oxide production
Cocoa flavanols signal the endothelium to produce nitric oxide — your body's natural vasodilator. Researchers proved this by blocking nitric oxide synthesis with a drug and watching the entire flavanol effect disappear.
Blood flow restores — to heart and brain
Columbia University researchers watched this happen live on fMRI — flavanols increased blood volume in the hippocampus directly proportional to improved memory scores.
"Participants given a high-flavanol cocoa drink showed a 29% increase in arterial dilation within 12 hours. When nitric oxide synthesis was blocked, the effect completely disappeared."
Documented in Nature, PNAS & Circulation
Columbia University used fMRI to measure actual increases in blood volume in the dentate gyrus — the hippocampal region responsible for forming new memories — after 3 months of supplementation.
The Academy of Nutrition and Dietetics issued its first-ever dietary recommendation for a specific bioactive compound in October 2022. That compound was flavanols. At 400–600mg per day.
Dark chocolate
isn't enough.
The '% cacao' on the label means nothing
No legal requirement exists to disclose flavanol content. The percentage measures total cacao-derived ingredients — including cocoa butter, which contains zero flavanols.
Dutch processing wipes out the benefit
Invented in 1828, alkalization destroys 60–90% of flavanols. Most commercial dark chocolate uses this process. If your label says "processed with alkali," the flavanols are largely gone.
Cavora delivers the dose the research actually used
500mg of standardised cocoa flavanols per serve. Consistent, measured, third-party tested. No Dutch processing. No guesswork.
A tribe with no heart disease.
Harvard spent a decade finding out why.
In the 1940s, a US military cardiologist noticed the Kuna people of Panama had almost no hypertension and dramatically longer lives. Harvard's Norman Hollenberg thought it was genetic — until he tested Kuna who had moved to Panama City and found their disease rates had become identical to their neighbours.
"The Kuna who moved to the city had blood pressure and cardiovascular disease rates virtually identical to their non-Kuna neighbours. The genetic protection had simply... vanished."
Hollenberg et al., Brigham and Women's Hospital / Harvard Medical School, published in Hypertension
What consistent use
looks like.
"I'm a 59-year-old software developer who always feared I'd slow down mentally. But I can effortlessly keep up with all the twenty-something computer geeks fresh out of college. I can easily remember things that other people seem to forget."
"Just a few weeks in and my blood pressure is down to unbelievable levels. I am floored by the results. I will take this over blood pressure medication any day — the side effects from BP meds were destroying my quality of life."
"As a pharmacist, I'm always sceptical about non-medicinal claims. But my cholesterol was finally in an acceptable range — lower than it's been in 15+ years. I can't deny that this has made a measurable difference."
Guarantee
Try it. Feel the difference. Or we'll refund you.
Add Cavora to your daily routine for 30 days. If you don't notice a difference — in energy, focus, or how you feel — contact us for a full refund. No hoops. No excuses.
Honest answers,
no marketing fluff.
I already eat dark chocolate. Isn't that enough?
Almost certainly not. Most commercial dark chocolate uses Dutch-processed cocoa, destroying 60–90% of flavanols. To reliably hit 500mg, you'd need 100–200g of high-quality dark chocolate daily — roughly 500–1,000 calories of sugar and saturated fat. Every day.
The COSMOS trial was funded by Mars. Should I trust it?
The trial was led by Harvard's Brigham and Women's Hospital and funded primarily by the National Institutes of Health. The research team is independent of Mars. The results have been replicated across multiple independent trials.
I'm on blood pressure medication. Can I take this?
Always discuss supplements with your doctor, especially on prescription medication. Many people use flavanol supplements alongside existing protocols. Your GP can advise on what's right for you.
How long before I notice results?
Short-term studies show measurable improvements in arterial dilation within hours. Blood pressure and cognitive improvements observed within 2–8 weeks. The cardiovascular death reduction in COSMOS built over 3.6 years — some benefits compound over time.
Is there heavy metal contamination risk?
A real concern across the cocoa industry. Cavora is third-party tested with rigorous quality controls to minimise contamination. Documentation available on request.
Ready to give your heart and brain what the science says they need?
500mg of cocoa flavanols per serve. The exact dose used in the Harvard trial. Third-party tested. 30-day satisfaction guarantee.