While some patients notice improvement after a single session, most people require a series of treatments to achieve their desired results
The USDA Agricultural Research Service used the 148 pmol/L threshold in their national prevalence studies, and the NIH Office of Dietary Supplements acknowledges that lab reference ranges can vary between institutions
Early signs include tingling or 'pins and needles' in the feet and hands, numbness in the extremities, burning pain (often worse at night), balance problems, and muscle weakness
Stack two or three errors and you're injecting expensive saline
You may be misdiagnosed because the symptoms (tiredness, dizziness, tingling in hands and feet) can be symptoms of other illnesses too
References Heffernan M, Summers RJ, Thorburn A, Ogru E, Gianello R, Jiang WJ, Ng FM