نتایج جستجو برای: dietary supplements
تعداد نتایج: 210177 فیلتر نتایج به سال:
This is the third in a series of six articles to discuss the major classes of dietary supplements (vitamins; minerals; amino acids; herbs or botanicals; metabolites, constituents/extracts, or combinations). The major focus is on efficacy of such dietary supplements to enhance exercise or sport performance.
This is the fourth in a series of six articles to discuss the major classes of dietary supplements (vitamins; minerals; amino acids; herbs or botanicals; metabolites, constituents/extracts, or combinations). The major focus is on efficacy of such dietary supplements to enhance exercise or sport performance.
Herbal dietary supplements are often considered by patients to be safe and free from side effects. The case described here shows digoxin toxicity in a patient taking a dietary supplement not normally considered to contain digoxin. In addition to highlighting the risks of herbal supplements, this case also demonstrates the concept that digoxin equivalents are not picked up by the standard digoxi...
OBJECTIVES To describe the use of dietary botanical supplements and teas among infants, the characteristics of mothers who give them the specific botanical supplements and teas used, reasons for use, and sources of information. METHODS We used data from the Infant Feeding Practices Study II, a longitudinal survey of women studied from late pregnancy through their infant's first year of life c...
The use of weight loss dietary supplements is prevalent in the United States, and over the past decade, there has been tremendous growth of the use of these products. It is well documented that ephedra-based products are associated with various cardiovascular adverse effects. With new restrictions placed on such products, companies are now manufacturing caffeine-based ephedra-free herbal supple...
Whether they are being taken as dietary supplements by the general public or being evaluated in a clinical study, the authenticity of botanical products is a matter of paramount concern. Botanical specimens and the dietary supplements derived from them can vary in quality and in chemical constituent profiles because of a number of factors. Subtle variations in botanical specimens are known to h...
BACKGROUND Limited cutaneous synthesis due to low sun exposure and inadequate dietary intake makes vitamin D supplementation a necessity for many Canadian children. Identification of the factors associated with supplement use is necessary for public health awareness campaigns, but they have not been identified previously. Therefore, the purpose of this study was to assess the prevalence and the...
This study documented the prevalence and pattern of dietary supplements usage among older adults in Japan. Persons aged 55-75 years residing in middle and southern Japan were recruited and interviewed face-to-face on their use of dietary supplements. Among the 572 (355 male and 217 female) participants from 10 prefectures, 45.8% took supplements on a weekly or daily basis, the prevalence was hi...
This paper reports a typical statin-related adverse reaction from a red yeast rice (RYR) supplement and the analytical findings from the supplement. It also examines the regulatory framework governing botanical supplements in Europe. Two key events that shaped the current regulatory framework are reviewed. First, the Hecht-Pharma judgement by the European Court of Justice (ECJ) that inverted th...
Two studies were conducted to compare characteristics of consumers and non-consumers of vitamin and/or dietary supplements (study 1) and to assess the effect of a multivitamin and mineral supplementation during a weight-reducing programme (study 2). Body weight and composition, energy expenditure, and Three-Factor Eating Questionnaire scores were compared between consumers and non-consumers of ...
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