What symptoms are commonly seen with vitamin d deficiency?

Subtle: Most people never know. You want a blood level above 30, or at least 20. The only way is a blood test. Symptoms are close to useless.

Muscle pain&fatigue&: Many with d deficiency have no obvious symptoms but many do. For example, most people with chronic back pain have low vit d; research shows giving d almost always improves the pain. Fatigue & frequent infections are other common symptoms. See http://www.Drfranklipman.Com/symptoms-diseases-associated-with-vitamin-d-deficiency/ & http://www.Naturalnews.Com/026966_pain_vitamin_d_deficiency.Html.