|
Harrison's Principles of Internal Medicine, 18e
Chapter 74. Vitamin and Trace Mineral Deficiency and Excess
Sections: Vitamin and Trace Mineral Deficiency and Excess: Introduction, Vitamins, Minerals, Further Readings.
Topics Discussed: absorption, distribution, and excretion of toxicants; avitaminosis; dietary supplements; vitamins, minerals, and herbals; micronutrients: vitamins and minerals; mineral deficiency; mineral excess; nutrition, digestion, and absorption; vitamins.
Excerpt:"Vitamins and trace minerals are required constituents of the human diet since they are inadequately synthesized or not synthesized in the human body. Only small amounts of these substances are needed to carry out essential biochemical reactions (e.g., by acting as coenzymes or prosthetic groups). Overt vitamin or trace mineral deficiencies are rare in Western countries due to a plentiful, varied, and inexpensive food supply; however, multiple nutrient deficiencies may appear together in persons who are chronically ill or alcoholic. After gastric bypass surgery, patients are at high risk for multiple nutrient deficiencies. Moreover, subclinical vitamin and trace mineral deficiencies, as diagnosed by laboratory testing, are quite common in the normal population, especially in the geriatric age group...."
The content above is only an excerpt.
For full access, log into an existing user account below,
purchase an annual subscription, or
purchase a short-term subscription to the complete website.
|
|
|
|
Or
|
|
|
|