Which mineral has been linked to dietary supplements for fat loss and muscle gain?

• A. Calcium
• B. Iron
• C. Chromium
• D. Potassium

Answer: (C)

Chromium is the mineral commonly linked to fat-loss and muscle-gain supplements. It’s a trace mineral that can influence insulin’s action, helping with glucose uptake into cells and thus affecting how carbohydrates, fats, and proteins are metabolized. In some studies, chromium supplementation—often as chromium picolinate—has shown small, inconsistent improvements in body composition when combined with resistance training and a controlled diet. Because of the variability in study results, the effect is modest at best, but it’s the mineral most associated with these specific supplement claims. The other minerals listed—calcium, iron, and potassium—have primary roles in bone health, oxygen transport/energy production, and fluid/electrolyte balance, respectively, rather than being linked to fat loss and muscle gain through supplements.