The fruit that got turned into a miracle

Start with the good part, because it's real: soursop is delicious. The fruit of Annona muricata — known across the tropics as guanábana, graviola or corossol — is large, green and spiny on the outside, with soft white flesh that tastes like something between pineapple, banana and cream. It's eaten fresh, blended into juice, frozen into sorbet, folded into desserts. As a food, it has an honest and happy place at the table across the Americas, the Caribbean, West Africa and Southeast Asia.

Then there's the myth. Soursop has been promoted relentlessly online as a cancer treatment — you'll see claims that it is "thousands of times stronger than chemotherapy." On this, the serious cancer organisations are unanimous. Cancer Research UK and Memorial Sloan Kettering both state plainly that while laboratory studies show soursop compounds can kill cancer cells in a dish, there is no reliable evidence it treats cancer in people, and regulators have acted against sellers making those claims. The real harm here isn't the fruit; it's that believing the hype has led people to delay treatment that works. We think saying so is part of being an honest food company.

There's also a genuine safety point, and it would be dishonest to skip it. Soursop — the fruit, the seeds and the leaves — contains a compound called annonacin, which is neurotoxic in laboratory studies. A cluster of unusual Parkinson's-like illness in the French West Indies was linked, in observational work, to heavy long-term consumption of Annona fruit and leaf teas. Regulators have been careful to say the connection isn't confirmed as cause and effect, but the signal is real enough that oral soursop is treated with caution, and the people most affected were consuming it daily, in quantity, over years.

Put the two halves together and you get a sensible position rather than a scary one. Soursop is a food, and it is best enjoyed as a food: occasionally, for pleasure, in ordinary culinary amounts — not as a daily medicine, and not megadosed. That is the whole of our approach to it. A cup now and then, for the taste, with no claims attached. Of everything in our pantry, this is the one we've thought hardest about, and we'd rather tell you why than pretend the questions don't exist.