Navegando por Palavras-chave "suplementos dietéticos"

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    Consumo de suplementos por alunos de academias de ginástica em São Paulo
    (Pontifícia Universidade Católica de Campinas, 2003-09-01) Pereira, Raquel Franzini; Lajolo, Franco Maria; Hirschbruch, Marcia Daskal [UNIFESP]; Universidade de São Paulo (USP); Universidade Federal de São Paulo (UNIFESP)
    The increase in the number of fitness centers in the city of São Paulo, together with the increase in the offering of different supplements, has raised interest in the study of the consumption of supplements among fitness center users. The consumption of supplements by the general public has not been well quantified yet, and little information has been published about this subject. The arrival of new supplements in the market place has been faster than the creation of regulations and the accomplishment of researches proving their effects and determining the safety for their long-term use. In a sample of 309 users from seven fitness centers in São Paulo in 1999, 74 (23.9%) used at least one type of supplement, 77,0% of whom were male and 23,0% were female. The most consumed supplements were amino acids or other proteic products (38.9%), and the daily intake was the most mentioned consumption frequency (90.3%). The correlation between money expenditure with supplement and individual income was 27.5% (p = 0.0483; n = 52), and the expenses were greater among men; the correlation with family income was 36.1% (p = 0.0137; n = 46) and with Body Mass Index it was to 17.1% (p = 0.1564; n = 70). The conclusion was that the consumption of supplements is significant in the evaluated group, showing the need for more studies about the consumption of these products and their effects, focusing on nutrition education approaches in order to increase the level of information about them and to guarantee the safety of their use.
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    Efeitos da utilização de prebióticos (oligossacarídeos) na saúde da criança
    (Sociedade de Pediatria de São Paulo, 2009-12-01) Millani, Elisabete; Konstantyner, Tulio [UNIFESP]; Taddei, Jose Augusto de Aguiar Carrazedo [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    OBJECTIVE: To evaluate the use of prebiotics (oligosaccharides) in child health, their applications and possible mechanisms of action. DATA SOURCE: The articles for this review were electronically selected from the Biblioteca Regional de Medicina (Bireme) virtual library database, which includes Lilacs, Medline and SciELO databases. Search included articles on the subject from 1998 to 2008 comprising children up to 12 years old. DATA SYNTHESIS: The prebiotic oligosaccharides in food products provided beneficial effects that included increase in total number of bifidobacteria, reduction in the number of pathogenic intestinal microorganisms; improvement of excrement consistency and in the frequency of evacuations These effects suggest their recommendation for constipated children. Beneficial results were verified in several studies concerning the reduction of allergies development, respiratory infections, fever, irritability, flatulence, diarrhea, regurgitation, vomits, colic, cry and use of antibiotics, with improvement of fermentation characteristics of fatty acids and fecal pH. Nevertheless, the number of studies found indicates the need for further investigation. Studies on calcium absorption were contradictory. Concerning tolerance, it is impossible to verify the safety of these products due to the use of diverse quantities of supplement for children from different age ranges and clinical characteristics CONCLUSIONS: Although prebiotics seem promising and provide beneficial effects in certain situations, they deserve further investigation to evaluate their actual efficacy and safety on immediate and long term conditions, in order to confirm the absence of harmful consequences for children's health.