For 14-year-old children with leg cramps, it is mostly due to calcium deficiency. Because 14 years old is in the adolescent development period, height development is faster, metabolism is more vigorous, if this time is not timely replenishment of calcium, resulting in calcium deficiency will cause muscle cramps, thus causing leg cramps. Therefore, after this situation, usually more outdoor exercise and can eat more calcium-containing shrimp, soy products, dairy products, sesame and other foods to promote the absorption of calcium. If necessary, you can apply calcium and vitamin D orally to promote the absorption of calcium and thus relieve the symptoms of leg cramps in children.