This Ancient Herb Just Got a Major Brain-Boosting Upgrade

Ashwagandha, a cornerstone of Ayurvedic medicine for centuries, is having a modern moment—and for good reason.

A groundbreaking new study published in Nutrients reveals that a specialized extract of ashwagandha (Shoden®, standardized to 35% withanolide glycosides) may offer measurable cognitive benefits to adults with mild cognitive impairment (MCI), a condition often considered a precursor to Alzheimer’s disease.

That’s big news for anyone concerned about memory loss… especially seniors.

Researchers recruited 125 adults with MCI, ages 45 to 75, and gave them either 400 mg of Shoden® or a placebo every day for 90 days.

The results?

Those taking the ashwagandha extract saw significant improvements in:

• Immediate memory
• General memory
• Verbal learning and memory
• Attention and executive functioning

The researchers also used EEG (electroencephalogram) readings and serum BDNF (brain-derived neurotrophic factor) levels to back up the subjective reports with biological evidence.

BDNF is a key protein associated with learning, memory, and brain plasticity—and the group taking ashwagandha showed higher BDNF levels by the end of the study.

Even more encouraging? Participants reported fewer stress symptoms and better sleep, both of which are known to contribute to cognitive decline when left unaddressed.

While ashwagandha has long been touted for stress relief and energy support, many commercial extracts lack the potency or consistency needed for serious brain health support.

This study used Shoden®, a high-potency, purified extract designed to maximize the bioavailability of active compounds called withanolides. With 35% withanolide glycosides, it delivers far more of the active ingredients than typical supplements—which may explain the strong results.

Mild cognitive impairment affects up to 20% of adults over 65—and many are told to “wait and see” whether it progresses to full-blown dementia.

But this research offers something more proactive: A safe, natural way to support brain health before symptoms worsen.

As always, talk to your doctor before starting any new supplement—especially if you’re taking medications or managing other conditions. But for those seeking a natural edge against age-related memory decline, ashwagandha may finally live up to its ancient reputation.

To sharper thinking (naturally),

Rachel Mace
Managing Editorial Director, e-Alert
with contributions from the research team