Peanuts are the original superfood.

A staple crop of the Incas and other civilizations for over 7,000 years, today peanuts don't get the respect they deserve: sustainably grown, minimally processed and

nutritionally complete with healthy fats, plant protein, fiber, vitamins, minerals and polyphenols

including resveratrol, the antioxidant compound famously found in red wine. Today two separate bodies of published clinical research point to the health benefits of a handful of peanuts a day.

A sharper mind.

Randomized controlled trials, the gold standard of nutrition research, have linked daily peanut consumption to

improved memory, cognition, and attention,

along with reduced anxiety. These aren't isolated findings: four separate trials, each running participants through structured cognitive and mood testing, point in the same direction. [1–4] For example, in one six-month trial of healthy adults, daily peanut eaters showed measurably better memory and stress response than controls. [1] Researchers attributed the effect to peanuts' polyphenols and healthy fats, which appear to support blood flow and signaling in the brain.

This body of human trial evidence is arguably

More compelling than that for lion's mane in healthy adults.

A longer life.

The evidence for an effect on longevity is even more striking. Large observational studies following over 800,000 people for decades across multiple continents associate daily peanut consumption with roughly

20% lower all-cause mortality. [5–8]

That means peanut eaters, as a group, were significantly less likely to die from any cause during the study periods. The landmark Nurses' Health Study tracked 119,000 people for 30 years. [5] A Journal of the American Medical Association analysis followed 200,000 more. [6] and a 2019 study published in Nutrients covered 566,000 subjects over 16 years. [7] Across continents and populations, the pattern holds:

regular peanut eaters live longer,

with the biggest reductions seen in deaths from heart disease. This effect size is comparable to the magnitude of benefit associated with moderate physical activity. You don't need a supplement or a complicated protocol.

A handful a day,

about the amount of peanut in two Circ packs, is the amount tied to these clinically demonstrated benefits. What matters is the habit, and studies involving close to a million participants suggest that

daily peanut consumption is a
habit worth keeping.

  1. Parilli-Moser et al, Clinical Nutrition (2021), 63-subject randomized trial.
  2. Barbour et al, Nutritional Neuroscience (2017), 61-subject randomized trial.
  3. Reeder et al, Functional Foods in Health and Disease (2022), 61-subject randomized trial.
  4. Choi et al (2024), Conference abstract, 50-subject randomized trial.
  5. Bao et al, New England Journal of Medicine (2013), Nurses' Health Study: 119,000 subjects over 30 years.
  6. Luu et al, JAMA Internal Medicine (2015), 200,000 subjects over 5–12 years.
  7. Amba et al, Nutrients (2019), 566,000 subjects over 16 years.
  8. Yamakawa et al, British Journal of Nutrition (2022), 71,000 subjects over 15 years.
  9. Docherty et al, Nutrients (2023), Randomized trial in 41 healthy adults.
  10. Lee et al, Circulation 2022, Physical activity and health in over 100,000 adults followed for 30 years.