Worldwide, approximately 815 million people worldwide are food-insecure, meaning that they do not have reliable access to sufficient quantities of safe, nutritious and affordable food. Even more people – approximately 2 billion – have deficiencies of important micronutrients such as iron, iodine and zinc.
Insufficient dietary iron can lead to iron deficiency anemia, a condition in which there are too few red blood cells in the body to carry oxygen. This is the most common type of anemia. It can cause fatigue, shortness of breath or chest pain, and can lead to serious complications, such as heart failure and developmental delays in children.
Zinc deficiencies are characterized by loss of appetite and diminished sense of smell, impaired wound healing, and weakened immune function. Zinc also supports growth and development, so sufficient dietary intake is important for pregnant women and growing children.
Higher carbon concentrations in plants reduce nitrogen amounts in plant tissue, which is critical for the formation of B vitamins. Different B vitamins are required for key functions in the body, such as regulating the nervous system, turning food into energy and fighting infections. Folate, a B vitamin, reduces the risk of birth defects when consumed by pregnant women.
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