Iron deficiency is one of the most common nutritional deficiencies and a frequent contributor to ongoing fatigue, low stamina, weakness, and difficulty concentrating. Because iron helps your body make hemoglobin, the protein in red blood cells that carries oxygen, low iron can leave your tissues with less oxygen than they need to function well.

A strong immune system depends on many everyday factors, including sleep, movement, stress management, hydration, and a nutrient-rich eating pattern. While no single food can prevent illness, choosing a variety of whole foods can help provide the vitamins, minerals, protein, fiber, and beneficial plant compounds your immune system needs to function well.

Zinc is an essential mineral that supports normal immune function, wound healing, and healthy cell growth. Getting enough zinc through food is one of the simplest ways to support immune health.

Gut health and inflammation are closely connected because the digestive tract is a major interface between the outside world, the immune system, and the body’s internal environment. A balanced gut microbiome, a strong intestinal barrier, and healthy lifestyle habits may help support normal immune function, while gut disruption may contribute to ongoing inflammatory signaling.