The Essential Toxin: Impact of Zinc on Human Health

This review examines zinc's dual role as an essential trace element and a potential toxin. Zinc is critical for brain function, immune health, and cellular metabolism, being involved in over 300 enzymes. Zinc deficiency, common due to poor diet or health issues, can impair growth, immunity, and brain development, while excessive zinc intake may disrupt copper metabolism and cause toxicity. In the brain, zinc influences neurotransmission and apoptosis, with imbalances linked to neurodegenerative conditions and cellular damage after injury.

Incorporate zinc-rich foods such as meat, shellfish, seeds, and legumes into your diet to maintain adequate levels. Avoid excessive supplementation unless prescribed, as it can disrupt copper balance and lead to toxicity. Regular intake of a balanced diet can support brain and immune health effectively.