Deficiency, Dependency, and Toxicity

• Calcium
• Iron
• Phosphate
• Potassium
• Sodium

• Health: Nutrition: Nutrients: Vitamins and Minerals 

• 1st Holistic: Nutritional Deficiency and Its Symptoms:  - Chart lists nutrient, incidence of deficiency, and typical symptoms and diseases for most common vitamins and minerals.
• CerefolinNAC  - Naturally addresses genetic nutritional deficiencies associated with cognitive impairment in the elderly.
• Merck Manual: Vitamin Deficiency, Dependency, and Toxicity  - Overview includes types of vitamins, recommended intake, and causes of deficiency and dependency.
• Vitamins-Nutrition.org: What Can Mineral Deficiencies Do?  - Explains what minerals are and why they're important, as well as the effects of specific deficiencies.