Neuroscientist Warns of Three Supplements That Could Harm Your Brain

In today’s health-conscious society, dietary supplements are often sought after for their promises of better sleep, youthful skin, stronger nails and hair, and reduced stress. While these supplements can offer benefits when used appropriately, there are serious concerns about their potential harm when consumed in excess.

Manganese

This trace mineral is crucial for energy metabolism, connective tissue formation, and antioxidant protection. Found naturally in foods like pineapple, nuts, whole grains, and leafy greens, manganese is essential in small amounts. However, excessive intake can lead to neurological issues resembling Parkinson’s disease. Dr. Love advises, “The upper limit for manganese is 11 mg per day for healthy adults; exceeding this limit can lead to tremors and other serious neurological symptoms.”

Iron

Vital for transporting oxygen in the blood, iron is abundant in foods such as liver, meat, fish, legumes, and leafy greens. While essential for many bodily functions, excess iron intake can be detrimental. “High levels of iron have been linked to memory loss, cognitive decline, and accelerated aging,” warns Dr. Love. It’s crucial to only take iron supplements under medical supervision, as unnecessary supplementation can lead to toxicity. Special caution is needed for groups like vegans or menstruating women who may require supplementation due to increased iron needs.

Copper

Found in foods like liver, shellfish, and nuts, copper is essential but harmful in excess. Dr. Love explains, “High copper levels can increase free radicals, causing oxidative stress and potentially damaging the brain.” To mitigate these risks, adequate zinc intake is recommended, either through supplements or zinc-rich foods like seafood and whole grains. Zinc helps neutralize copper’s free radicals, protecting brain health.

Overall, while supplements can fill nutritional gaps, they should be approached with caution and ideally under professional guidance. Dr. Love emphasizes the importance of moderation and monitoring, advocating for a balanced diet as the primary source of essential nutrients. As with any health regimen, informed decisions and awareness of potential risks are key to maintaining optimal health and well-being.