Zinc in cancer prevention

Area of Science:

• Oncology
• Nutritional Science
• Cancer Prevention

Background:

• Epidemiologic studies link zinc deficiency to elevated cancer risk.
• Limited research exists on zinc supplementation's effects in humans and animals.
• Previous studies often combined zinc with other nutrients, hindering interpretation.

Purpose of the Study:

• To explore the potential role of zinc supplementation in cancer prevention.
• To investigate the mechanisms underlying zinc's potential anti-cancer effects.
• To highlight the need for further preclinical and clinical studies on zinc and carcinogenesis.

Main Methods:

• Review of existing epidemiologic and intervention studies on zinc and cancer.
• Analysis of potential biological mechanisms, including oxidative stress and immune function.
• Identification of research gaps in understanding zinc's modulation of genetic and epigenetic pathways.

Main Results:

• Zinc deficiency is associated with increased cancer risk.
• Zinc supplementation may reduce oxidative stress and enhance immune function.
• Current evidence on zinc's direct cancer-preventive effects is limited due to study design.

Conclusions:

• Further rigorous preclinical and clinical investigations are required.
• Studies should focus on zinc's impact on genetic and epigenetic factors in cancer development.
• Understanding zinc's role in cancer prevention requires targeted research on supplementation.