Mechanistic Impact of Zinc Deficiency in Human Development.

Area of Science:

• Human Health and Nutrition
• Mineral Metabolism
• Global Health Challenges

Background:

• Zinc deficiency is a growing global health concern, impacting roughly two billion people worldwide.
• Inadequate zinc intake from staple grains and vegetables contributes significantly to this deficiency.
• Clinical diagnosis is challenging as symptoms manifest only after vital organ systems are compromised.

Purpose of the Study:

• To review physiological and growth changes in humans due to zinc deficiency.
• To explore the body's adaptive mechanisms in response to low zinc levels.
• To evaluate nutritional and nutraceutical strategies for combating zinc deficiency.

Main Methods:

• Literature review of studies on zinc deficiency.
• Analysis of physiological and cellular mechanisms related to zinc.
• Evaluation of dietary and supplemental interventions for zinc repletion.

Main Results:

• Zinc deficiency leads to impaired organ function (gastrointestinal, central nervous, immune, skeletal) and physiological disorders like apoptosis and DNA damage.
• Oxidative stress, mediated by reactive oxygen species (ROS), is a key consequence, contributing to chronic inflammation and diseases (heart disease, cancer, neuro-pathogenesis).
• Biofortified foods are identified as a superior source of zinc compared to chemical supplementation due to potential adverse effects of the latter.

Conclusions:

• Biofortified foods represent the most effective and safest strategy for overcoming human zinc deficiency.
• Understanding zinc's role in preventing oxidative damage and inflammation is crucial for public health.
• Early identification and intervention strategies are needed to mitigate the widespread impact of zinc deficiency.