A new study reveals that a common dietary supplement, often marketed as a natural remedy for cognitive decline, may actually worsen memory performance in healthy adults. Researchers found that participants who consumed the supplement experienced slower reaction times and greater difficulty recalling information compared to those who took a placebo. The findings challenge widespread assumptions about the benefits of such products, suggesting that their effects could vary significantly depending on individual health and brain function. Experts now urge caution, recommending further investigation before dismissing these supplements entirely.