Do you have any of these or a combination of them? It may be time to see your health practitioner. 7 Common Signs of Nutrient Deficiency: 1] Poor night vision, 2] Cracks at the corner of your mouth, 3] Sore or discoloration of the mouth or tongue, 4] Weak, spotted or ridged nails, 5] Poor blood clotting, 6] Weak muscles and bones, & 7] Frequent cramps in lower legs. Want to learn about super foods for nutrient deficiency? Click through for some great insights from Dr. Robert Scott Bell!