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This study examined associations between multiple dietary supplement (DS) categories and medical conditions diagnosed by health professionals.
Design:
Cross-sectional.
Setting:
Volunteers completed an online questionnaire on DS use and demographic/lifestyle factors. Medical diagnoses were obtained from a comprehensive military electronic medical surveillance system and grouped into twenty-four clinically diagnosed medical conditions (CDMC).
Participants:
A stratified random sample of US service members (SM) from all military services (n 26 680).
Results:
After adjustment for demographic/lifestyle factors (logistic regression), higher risk was found for 92 % (22/24) of CDMC among individual vitamins/minerals users, 58 % (14/24) of CDMC among herbal users, 50 % (12/24) of CDMC among any DS users and 46 % (11/24) of CDMC among multivitamins/multiminerals (MVM) users. Among protein/amino acid (AA) users, risk was lower in 25 % (6/24) of CDMC. For combination products, risk was higher in 13 % (3/24) of CDMC and lower in 8 % (2/24). The greater the number of CDMC, the higher the prevalence of DS use in most DS categories except proteins/AA where prevalence decreased.
Conclusions:
Users in many DS categories had a greater number of CDMC, but protein/AA users had fewer CDMC; results for combination products were mixed. These data indicate those with certain CDMC were also users in some DS categories, especially individual vitamins/minerals, herbals and MVM. Data are consistent with the perception that use of DS enhances health, especially in those with CDMC. Protein/AA and combination product users were more likely to be younger, more physically active men, factors that likely reduced CDMC.
This chapter explains the value of incorporting materialist analysis into studies of intellectual history and the history of science by examining the curious case of a tiny anonymous herbal that was one of the most popular English books of the sixteenth century. It shows that these works of natural history have been receiving increased attention from scholars and that this scholarship is unfortunately limited by too much attention upon herbals’ authors to the detriment of those figures who commissioned, marketed, made, and sold botanical books to an eager early modern public.
To reveal the sophisticated and nuanced calculus of English stationers, this chapter explores the recursive relationship between readers’ responses to printed herbals and the activities of the publishers who catered to them, as well as the shifting regulatory mechanisms that enabled stationers to navigate the amount of financial risk that herbal publication increasingly asked of them.
Turner’s attitude towards printed books, and the uses to which they can be put by clever authors, can be seen to shift over the course of his interrelated careers as a physician, divine, and naturalist. This chapter demonstrates how Turner’s three herbals reflect a bibliographic self-consciousness in English botany that was emerging simultaneously with the efforts of English physicians to assert their influence over all elements of medicine. Anonymous bestselling English works like the little Herball as well as The Grete Herball were widely available during Turner’s undergraduate studies at Cambridge, but despite their popularity with readers, Turner claimed that those works offered little of use to professional medical practitioners. It was to remedy what he called the “unlearned cacography” of these texts that Turner was prompted in 1538 to first offer up his own botanical studies in English for the good of the commonweal despite his fellow physicians’ concerns that such an endeavor would make specialized professional knowledge widely available to laypeople.
Between 1525 and 1640, a remarkable phenomenon occurred in the world of print: England saw the production of more than two dozen editions identified by their imprints or by contemporaries as 'herbals'. Sarah Neville explains how this genre grew from a series of tiny anonymous octavos to authoritative folio tomes with thousands of woodcuts, and how these curious works quickly became valuable commodities within a competitive print marketplace. Designed to serve readers across the social spectrum, these rich material artifacts represented both a profitable investment for publishers and an opportunity for authors to establish their credibility as botanists. Highlighting the shifting contingencies and regulations surrounding herbals and English printing during the sixteenth and early seventeenth century, the book argues that the construction of scientific authority in Renaissance England was inextricably tied up with the circumstances governing print. This title is also available as Open Access on Cambridge Core.
The potato has nourished ordinary people in the Americas for millennia. Villagers along the Andes grew a great variety of potatoes, which were used in diverse ways to provide year-round nourishment. The Europeans who reached South America’s Pacific coast in the 1530s introduced potatoes to Europe, thereby initiating its global spread. Once in Europe, the potato attracted little attention from representatives of the state. Uninterested as they were in the everyday eating habits of European labourers, few learned writers assessed the novel plant’s potential as a foodstuff for Europeans. Those who did complained that the potato was excessively nourishing and so facilitated laziness. Ordinary people, in contrast, embraced the potato, which possessed a number of advantages over existing foodstuffs. Potatoes can produce a prolific harvest even in poor soil, and make a sustaining meal. Moreover, precisely because states were not interested in the everyday eating habits of poorer folk, it took many decades for the potato to attract the attention of tax-collectors. Potatoes thus allowed peasants and labourers to evade some of the less welcome aspects of state control. It is they who are responsible for the potato’s entry into the European diet.
We assessed the prevalence, patterns and predictors of dietary supplement use among participants of the databank and biorepository (DBBR) at a comprehensive cancer centre in western New York.
Design
Archived epidemiological questionnaire data were obtained from the DBBR at Roswell Park Cancer Institute. Descriptive statistics and logistic regression explored the prevalence, patterns and predictors of lifetime use of four common supplements (multivitamins, vitamin C, vitamin E and calcium) and use of multivitamins, sixteen single vitamins/minerals and eighteen herbal/specialty supplements within the previous 10 years.
Setting
Western New York, USA.
Subjects
DBBR participants (n 8096) enrolled between December 2003 and July 2012 were included in these analyses: 66·9 % (n 5418) with cancer, 65·6 % (n 5309) women, mean age for patients v. cancer-free controls 59·9 (sd 12·6) years and 50·7 (sd 15·4) years, respectively.
Results
Overall, 54·4 % of DBBR participants reported lifetime use of one or more supplements and 63·1 % reported use of one or more supplements within the previous 10 years (excluding multivitamins). Multivitamin use was high in this sample (lifetime: 64·1 %; 10 years: 71·3 %; current: 51·8 %). Supplementation was higher among cancer-free controls than cancer patients. Vitamin C, calcium and fish oil were the most common single vitamin, mineral and specialty product, respectively.
Conclusions
A consistently high and increasing proportion of dietary supplement use over time remains clear. Supplementation is prevalent among cancer patients and may even be higher than predicted in cancer-free individuals. Further studies should assess the safety and efficacy of specific supplements in reducing disease risk.
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