Although magnesium deficiency is rare, symptoms deficiency include sleep disorders, restless leg syndrome, irritability, anxiety and agitation, abnormal heart rhythms, vomiting, nausea, low blood pressure, muscle cramping, hyperventilation, confusion, seizures, and weak nail growth. (ahealthblog.com)
Other symptoms of poor circulation include weak nails, fungal nail infections, low brain endurance, and cramping in the hands and feet. (functionalhealthnews.com)
If you have thin hair that's often brittle or weak nails, collagen can help your hair and nails grow faster, thicker and more beautiful. (rootandrevel.com)