The Bottom Line
Eating peanuts regularly may offer benefits for brain and cardiovascular health. A small 2025 randomized trial found improved cerebral blood flow and a modest improvement in one measure of verbal memory among healthy older adults who ate 60 grams of unsalted, skin-roasted peanuts daily for 16 weeks.
However, a separate 2026 trial did not find significant cognitive improvements among older adults with memory complaints and cardiovascular risk factors.
The evidence is promising, but it is still developing. Peanuts should be viewed as one nutritious food that can contribute to a balanced eating pattern—not as a treatment for memory loss, a guaranteed way to prevent dementia, or a way to reverse brain aging.
Medical Disclaimer: This article is for educational purposes only and does not replace professional medical advice. Anyone experiencing persistent or worsening memory problems should speak with a healthcare professional rather than relying on dietary changes alone.
