Generally speaking, supplementing calcium has very limited effects on sciatica. Sciatica is typically caused by compression at the location where the nerves deviate, or by herniated lumbar discs, leading to compression of the sciatic nerve. This means that different compression sites require different treatment methods.

For sciatica, if it is caused by a herniated lumbar disc compressing the nerve, minimally invasive surgery can be performed when necessary to remove the protruding disc tissue. If the sciatic nerve is compressed near the buttocks or the piriformis, surgery may be required to remove part of the tissue to relieve or loosen the compressed sciatic nerve.

In terms of medication, oral nutritional supplements for nerves, anti-inflammatory and blood-activating drugs can be used to improve the condition of the compressed sciatic nerve. This can further alleviate corresponding symptoms such as pain and sensory abnormalities, while the role of calcium supplementation is very limited or ineffective.

(The use of medication should be under the guidance of a professional doctor.)