Are raw nuts really bad for you?

Raw nuts: dangerous food or viral exaggeration?

A video claiming that raw nuts are toxic is going viral on social media. The argument is nothing new: seeds contain chemical defense mechanisms such as phytates, oxalates and tannins, substances that in large amounts can interfere with mineral absorption. But nutritional science has been warning for decades that processing — soaking, fermentation, roasting — drastically reduces these compounds.

Antinutrients: an argument with nuances

Phytates, found in walnuts, almonds and sunflower seeds, bind to minerals like iron and zinc, making them harder to absorb. However, the human body adapts, and in the context of a varied diet the effect is marginal. Raw vegan advocates tend to downplay the risk; alarmists magnify it. As with almost everything, the key is the dose. The occasional handful of raw almonds is no problem for a healthy person.

Aflatoxins: a real but avoidable risk

Another point that comes up in the discussion: mold on nuts can produce aflatoxins, carcinogenic compounds. The concern is legitimate, but it mainly affects poorly stored batches, and the food industry has strict controls. Roasting not only eliminates antinutrients, it also significantly reduces aflatoxins. Zero risk does not exist, but neither does it justify demonizing a staple food.

The historical paradox of processing

An ironic observation: humankind has been cooking, grinding, fermenting and roasting seeds for ten thousand years. Precisely because many are toxic in their raw state — raw green beans are, and so are green potatoes. That we are now rediscovering that raw nuts contain potentially harmful compounds is not news; it is basic biology. What has changed is the focus of food marketing.

Conclusion: the video that sparked the debate contains half-truths. Yes, raw nuts contain antinutrients and, under certain conditions, molds. But the age-old solution — roasting or cooking them — works. As always, the nuance gets lost in the algorithm.