Mineral deficiency occurs when the body does not get enough essential minerals needed for proper functioning. Minerals like calcium, iron, and magnesium play crucial roles in various bodily processes, including bone health, oxygen transport, and muscle function. A lack of these minerals can lead to health issues such as weak bones, fatigue, and muscle cramps. Common causes of mineral deficiency include poor diet, certain medical conditions, and medications that affect nutrient absorption. To prevent deficiencies, it's important to consume a balanced diet rich in fruits, vegetables, whole grains, and lean proteins. Supplements may also be necessary for some individuals, but it's best to consult a healthcare professional first.