Which mineral is associated with body tissue formation and keratin strength?

Which mineral is associated with body tissue formation and keratin strength?

• A. Magnesium
• B. Sulphur
• C. Phosphorus
• D. Potassium

Answer: (B)

Sulfur is key because it’s a component of the sulfur-containing amino acids cysteine and methionine, which are building blocks of keratin. In keratin, cysteine forms disulfide bonds that cross-link protein chains, giving keratin-rich tissues like hair, nails, and the outer layer of skin their strength and durability. So sulfur directly supports tissue formation and the toughness of keratin. The other minerals play important roles elsewhere—magnesium in many enzymes and processes, phosphorus in bone mineralization and energy, potassium in fluid balance and nerve function—but they don’t provide the same specific structural reinforcement for keratin as sulfur.

Sulfur is key because it’s a component of the sulfur-containing amino acids cysteine and methionine, which are building blocks of keratin. In keratin, cysteine forms disulfide bonds that cross-link protein chains, giving keratin-rich tissues like hair, nails, and the outer layer of skin their strength and durability. So sulfur directly supports tissue formation and the toughness of keratin. The other minerals play important roles elsewhere—magnesium in many enzymes and processes, phosphorus in bone mineralization and energy, potassium in fluid balance and nerve function—but they don’t provide the same specific structural reinforcement for keratin as sulfur.