Calcium, magnesium, and potassium are essential inorganic minerals commonly found in food sources including spices and herbs. They exist primarily as ions (Ca2+, Mg2+, K+) in biological and food matrices rather than elemental metals. Calcium supports bone structure and signaling, magnesium acts as a cofactor in enzymatic reactions, and potassium maintains electrolyte balance and nerve function. These minerals are obtained through diet and are critical for human health. In food chemistry, they influence texture, pH, and stability of products. They are not volatile organic compounds but contribute to nutritional profiles. Typical dietary sources include leafy greens, nuts, and mineral-rich spices.