Iodine - Details include where iodine occurs in the body, why it is important, and symptoms of deficiency and excess, usually attributed to thyroid problems. - http://www.merck.com/mmhe/sec12/ch155/ch155e.html
Fluoride - Describes where this mineral is stored and why it's important. Includes symptoms and treatment of deficient or excessive consumption. - http://www.merck.com/mmhe/sec12/ch155/ch155d.html
Vitamin K - Describes the two forms, where they are found, and why they are important. Includes how deficiencies occur, as well as symptoms, diagnosis, and treatment. - http://www.merck.com/mmhe/sec12/ch154/ch154e.html
Vitamin E (Tocopherol) - Learn the function of this antioxidant, sources in food, causes, symptoms, diagnosis, and treatment of deficiency and excess levels in the system. - http://www.merck.com/mmhe/sec12/ch154/ch154d.html
Vitamin D - Explains the two forms of this essential vitamin. Includes symptoms, diagnosis, and treatment of deficiency, and causes and conditions associated with excess levels. - http://www.merck.com/mmhe/sec12/ch154/ch154c.html
Vitamin C (Ascorbic Acid) - Explains the importance of this vitamin, conditions and problems caused by deficiency, and why some people take high doses of ascorbic acid. - http://www.merck.com/mmhe/sec12/ch154/ch154l.html
Vitamin B6 (Pyridoxine) - Describes the essential nature of this vitamin, symptoms, and diagnosis of deficiency and excess levels in the system. - http://www.merck.com/mmhe/sec12/ch154/ch154i.html
Vitamin B2 (Riboflavin) - Brief article discusses the function of this vitamin, the disorders and procedures that can lead to deficiency, symptoms, diagnosis, and treatment. - http://www.merck.com/mmhe/sec12/ch154/ch154g.html
Vitamin B12 (Cobalamin) - Article describes the function of this vitamin in the body and symptoms, diagnosis, and treatment of deficiency. - http://www.merck.com/mmhe/sec12/ch154/ch154j.html
Vitamin B1 (Thiamin) - Information includes causes of deficiency, symptoms, diagnosis, and treatment. - http://www.merck.com/mmhe/sec12/ch154/ch154f.html
Niacin (Nicotinic Acid) - Provides information on why niacin is important, as well as the symptoms, diagnosis, and treatment of deficiency and excess levels. - http://www.merck.com/mmhe/sec12/ch154/ch154h.html
Folic Acid (Folate) - Describes why this vitamin is necessary, as well as the symptoms, diagnosis, and treatment of deficiency and excess. - http://www.merck.com/mmhe/sec12/ch154/ch154k.html
Vitamin A (Retinol) - Discusses the several forms, as well as the symptoms, diagnosis, and treatment of deficiency and excess. - http://www.merck.com/mmhe/sec12/ch154/ch154b.html
WebMD: Vitamin B12 Deficiency Anemia - A discussion about this vitamin, its deficiency, symptoms, causes and a list of food sources. - http://my.webmd.com/hw/anemia/hw65708.asp
Chromium Info - Information on what it is and what it does, chromium-rich foods, dietary supplements, and recommended daily intake. Includes how chromium picolinate effects insulin resistance and FAQs. - http://www.chromiuminfo.com
Vitamin K Toxicity - A brief look at this by The Merck Manual. - http://www.merck.com/pubs/mmanual/section1/chapter3/3i.htm
Vitamin K Deficiency - Provides information on the different forms and how they effect coagulation. Includes deficiency signs, symptoms, diagnosis, and treatment. - http://www.merck.com/pubs/mmanual/section1/chapter3/3h.htm
Pantothenic Acid Deficiency - Some of the signs and symptoms experienced with this deficiency. - http://www.merck.com/pubs/mmanual/section1/chapter3/3p.htm
Biotin Deficiency and Dependency - A brief look each at the deficiency and the dependency of this vitamin. - http://www.merck.com/pubs/mmanual/section1/chapter3/3o.htm
Vitamin B6 Toxicity - Brief article discusses megadoses and their effect on the body. - http://www.merck.com/pubs/mmanual/section1/chapter3/3n.htm
Vitamin B6 Deficiency and Dependency - Symptoms, signs, diagnosis and treatment are discussed. - http://www.merck.com/pubs/mmanual/section1/chapter3/3m.htm
Niacin Deficiency - A look at primary and secondary deficiency, symptoms, signs, diagnosis and treatment by The Merck Manual. - http://www.merck.com/pubs/mmanual/section1/chapter3/3l.htm
Riboflavin Deficiency - The Merck Manual looks at the symptoms, signs, laboratory findings, diagnosis and treatment. - http://www.merck.com/pubs/mmanual/section1/chapter3/3k.htm
Thiamine Deficiency and Dependency - The Merck Manual looks at primary and secondary deficiency, symptoms, signs, some specific diseases caused by deficiency, diagnosis and treatment. - http://www.merck.com/pubs/mmanual/section1/chapter3/3j.htm
Vitamin C Deficiency - A discussion about this vitamin and why we need it. Symptoms, laboratory finding, diagnoses, prophylaxis and treatment are covered. - http://www.merck.com/pubs/mmanual/section1/chapter3/3q.htm
Vitamin E Toxicity - Provides information of possible side effects and how large doses impact vitamin K function. - http://www.merck.com/pubs/mmanual/section1/chapter3/3g.htm
Vitamin E Deficiency - A discussion about this vitamin and the organs which can be affected by deficiency, signs and symptoms, laboratory findings, diagnosis and treatment. - http://www.merck.com/pubs/mmanual/section1/chapter3/3f.htm
Vitamin D Toxicity - Discussion on this vitamin and its first symptoms of toxicity and the treatment. - http://www.merck.com/pubs/mmanual/section1/chapter3/3e.htm
Vitamin D Deficiency and Dependency - The signs, symptoms, laboratory findings, diagnosis and treatment. - http://www.merck.com/pubs/mmanual/section1/chapter3/3d.htm
Vitamin A Toxicity - Symptoms, signs, diagnosis and treatment are discussed by The Merck Manual. - http://www.merck.com/pubs/mmanual/section1/chapter3/3c.htm
Molybdenum - A discussion about the deficiency and toxicity of this mineral. - http://www.merck.com/pubs/mmanual/section1/chapter4/4i.htm
Manganese - A look at the intake of this mineral and how it compares with each person. A case study about its deficiency. - http://www.merck.com/pubs/mmanual/section1/chapter4/4h.htm
Selenium - A look at the intake in different parts of the world and its deficiencies and toxicity by the Merck Manual. - http://www.merck.com/pubs/mmanual/section1/chapter4/4g.htm
Chromium - A look at this essential trace mineral and its deficiency and toxicity. - http://www.merck.com/pubs/mmanual/section1/chapter4/4f.htm
Zinc - The Merck Manual takes a look at this mineral and signs and symptoms of deficiency and toxicity. - http://www.merck.com/pubs/mmanual/section1/chapter4/4e.htm
Fluorine - Provides information about where this form of floride is stored in the body, sources, and problems associated with excess or insufficient intake. - http://www.merck.com/pubs/mmanual/section1/chapter4/4d.htm
Reference Guide for Vitamins - The importance and deficiency symptoms of a specific list of vitamins. - http://www.realtime.net/anr/vitamins.html
Vitamin A Deficiency - Overview of this vitamin, primary and secondary deficiency, symptoms, signs, diagnoses, and treatment. - http://www.merck.com/pubs/mmanual/section1/chapter3/3b.htm