
12. If you constantly feel weak or fatigued, it might be a lack of vitamins and minerals.
Iron deficiency can affect more than just your legs, and it is one of the most common nutrient deficiencies diagnosed worldwide. Another common symptom with low iron blood levels can also cause you to feel extreme fatigue or weakness (via Mayo Clinic). This is a condition known as anemia, which occurs when the number of red blood cells and the blood’s ability to carry oxygen drops and causes you to feel tired.
Anemia can, over time, weaken your immune system and impair brain function (via Hopkins Medicine). If you feel you have low iron levels, you should increase your intake of red meat. The daily recommended amount can be three ounces of ground beef to achieve that benchmark each day. Other iron-rich foods include organ meat, shellfish, canned sardines, dark leafy greens, and seeds. Be careful with adding iron supplements because too much iron can be harmful to your health.