What to know
Vitamin D deficiency can mimic musculoskeletal pain; at low levels, diffuse body aches, muscle weakness and getting tired on the stairs are typical. Plenty of people cycle through painkillers for years without anyone ever checking their vitamin D.
Magnesium is the muscle-relaxation mineral: night cramps and permanently tense back muscles often track with low levels. EPA-heavy omega-3 has gathered the most evidence for lowering the inflammatory load in joints; popular duos like glucosamine/chondroitin show far more mixed data.
Set expectations honestly: no supplement fixes posture or a herniated disc. Movement + weight management + the right support work as a trio; expecting a miracle from a capsule alone wastes both money and time.
New, severe pain, numbness or loss of strength requires a doctor's evaluation first. Supplements go alongside treatment, never instead of it: with your doctor's knowledge, the right support accompanies recovery and can help your treatment work better.
MIHEN / SOURCES
Sources and further reading
Primary public-health resources used for context and verification.