Nutrition

Download Encyclopedia of Dietary Supplements, Second Edition by Paul M. Coates, Joseph M. Betz, Marc R. Blackman, Gordon M. PDF

By Paul M. Coates, Joseph M. Betz, Marc R. Blackman, Gordon M. Cragg, Mark Levine, Joel Moss, Jeffrey D. White

Encyclopedia of nutritional Supplements offers peer-reviewed, aim entries that conscientiously study the main major medical examine on uncomplicated chemical, preclinical, and scientific info. Designed for healthcare execs, researchers, and health-conscious shoppers, it offers evidence-based details at the significant diet and mineral micronutrients, herbs, botanicals, phytochemicals, and different bioactive preparations.

Supplements lined include:

  • Vitamins, beta-carotene, niacin, and folate
  • Omega-3 and omega-6 fatty acids, isoflavones, and quercetin
  • Calcium, copper, iron, and phosphorus
  • 5-hydroxytryptophan, glutamine, and L-arginine
  • St. John's Wort, ginkgo biloba, eco-friendly tea, kava, and noni
  • Androstenedione, DHEA, and melatonin
  • Coenzyme Q10 and S-adenosylmethionine
  • Shiitake, maitake, reishi, and cordiceps

With approximately a hundred entries contributed by means of well known subject-specific specialists, the e-book serves as a systematic checkpoint for the numerous OTC vitamins carried in trendy dietary items marketplace.

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Additional resources for Encyclopedia of Dietary Supplements, Second Edition

Example text

14. One of the consistent findings of the various androstenedione studies in men is the inefficiency of conversion of the supplements to testosterone. Leder and colleagues explored this issue further by investigating the pattern of androstenedione metabolism in healthy men (17). Specifically, they measured the concentration of inactive testosterone metabolites (also called “conjugates”) in the urine of subjects ingesting androstenedione and found an increase of over 10-fold compared with their baseline levels.

The data suggested that this acemannan-stimulated synthesis “resulted in the initiation of immune attack, necrosis, and regression of implanted sarcomas in mice” (21). A study involving acemannan treatment as an adjunct to surgery and radiation in confirmed fibrosarcoma in dogs and cats showed tumor shrinkage in one-third of the animals after four to seven weeks of treatment administered by intraperitoneal and intralesional injections (22). An earlier study by the same group showed similar results (23).

L-Arg, its precursors, and its metabolites are deeply involved in the interaction of different metabolic pathways and interorgan signaling. The amino acid influences the internal environment in different ways: disposal of protein metabolic waste; muscle metabolism; vascular regulation; immune system function; healing and repair of tissue; formation of collagen; and building of new bone and tendons. A leading role for arginine has been shown in the endocrine system, vasculature, and immune response.

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