Which of the following is a consequence of not consuming enough iron?

The consequence of not consuming enough iron is primarily related to its crucial role in oxygen transport within the body. Iron is an essential component of hemoglobin, the protein in red blood cells responsible for carrying oxygen from the lungs to the tissues. When there is insufficient iron intake, the body can experience a reduction in hemoglobin production, leading to a condition known as iron deficiency anemia. This condition results in decreased availability of oxygen to cells and tissues, which can manifest as fatigue, weakness, and decreased exercise capacity.

In contrast, increased muscle strength, improved cognitive function, and enhanced immune response are not direct consequences of insufficient iron. While iron plays a role in various bodily functions, a deficiency primarily affects the body’s ability to transport oxygen efficiently, which is why decreased oxygen transport is the correct outcome associated with inadequate iron intake.