scholarly journals Vitamin D in Food Supplements: Labeling Survey

2021 ◽  
Vol 10 (2) ◽  
pp. 43
Author(s):  
Alexandra Figueiredo ◽  
Maria Deolinda Auxtero ◽  
Maria Guilhermina Moutinho ◽  
Inês Neves ◽  
Raquel Inez ◽  
...  

An adequate vitamin D (vitD) intake (Recommended Daily Allowance,RDA= 5µg) is crucial for health maintenance and its deficiency isassociated with several health problems. The increase in hypovitaminosisD cases and the proliferation of food supplements (FS) that are easilyaccessible by the population, have led to an unrestrained chronicconsumption of FS. VitD may accumulate in the body and originatetoxicity (Tolerable Upper Limit, UL=100 µg). The aim of this study was toevaluate if daily vitD doses mentioned in FS labels are in conformity withRDA. 210 solid and liquid FS (for pediatrics and adults) sold in Portuguesepharmacies, supermarkets, health shops and on the internet were examinedfor indicated daily intake of vitD and compared to RDA and UL values.51.43% of FS have values higher than RDA, 8.57% higher than UL. Theaverage vitD daily dose in FS is 24.48 µg, with a high variability betweensamples (0.25 - 250 µg). Majority of FS labels recommend vitD daily dosesabove RDA and some even above UL, regardless of being for adults orchildren. Therefore, it is crucial that vitD dose in FS is reviewed to ensurethe safety of these products.

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Samuel Asamoah Sakyi ◽  
Maxwell Hubert Antwi ◽  
Linda Ahenkorah Fondjo ◽  
Edwin Ferguson Laing ◽  
Richard K. Dadzie Ephraim ◽  
...  

Background. Vitamin D is a steroid hormone important for the normal functioning of the body. It is produced through skin exposure to sunlight and from the diet. Although Ghana is located in the tropics where sunlight is abundant, factors like culture, diet, skin pigmentation, variation in the ozone layer, and geographical area influence the optimization of vitamin D concentration. It is imperative to evaluate the interplay between sunshine exposure, proinflammatory cytokines, and mediators of vitamin D metabolism and their relationship to vitamin D status in three geographical sections among apparent healthy Ghanaians. Methods and Results. In a cross-sectional study, a total of five hundred (500) healthy blood donors from three geographical areas in Ghana were enrolled. Their age ranged from 17 to 55 years with a mean age of 27.97 ± 8.87 years. The overall prevalence rate of vitamin D deficiency was 43.6% (218/500), with 41.2% (91/221), 45.3% (63/139), and 45.7% (64/140) of vitamin D deficiency being recorded in participants from the Northern Sector (NS), Middle Belt (MB), and Southern Sector (SS), respectively. However, there were no significant differences in the proportions of vitamin D deficiency across various geographical sectors. The median 25-hydroxyvitamin D serum levels were compared among geographical areas (NS, MB, and SS) and there were no significant differences ( P = 0.275 ) after adjusting for confounding factors. 25-Hydroxyvitamin D correlated positively with corrected ionized calcium (rs = 0.622, P ≤ 0.001 ) and phosphorus (rs = 0.299, P ≤ 0.001 ) and negatively correlated with SBP (rs = −0.092, P = 0.039 ), vitamin D binding protein (VDBP) (rs = −0.421, P ≤ 0.001 ), intact parathyroid hormone (iPTH) (rs = −0.0568, rs ≤ 0.001), IFN-gamma (rs = −0.684, P ≤ 0.001 ), and TNF-alpha (rs = −0.600, P ≤ 0.001 ). After adjusting for possible confounders, not having knowledge about vitamin D foods, taking fewer vitamin D foods, and higher levels of IF-γ and IL-10 were associated with a higher risk of having vitamin D deficiency. Conclusion. The prevalence of 25-hydroxyvitamin D deficiency is high among the general adult population in Ghana despite the abundance of sunlight. Increasing knowledge on vitamin D diet coupled with a daily intake of vitamin D dietary supplements is likely to reduce the risk of developing 25-hydroxyvitamin D deficiency.


Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5851
Author(s):  
Irma Elisa Cupone ◽  
Eleonora Dellera ◽  
Fabio Marra ◽  
Andrea Maria Giori

Vitamin D plays a crucial and very well-known role in regulation of calcium homeostasis and bone metabolism and mineralization. However, a huge and more recent body of evidence supports the positive influence of vitamin D on the regulation of immune response, ranging from protection against respiratory tract infections to prevention and management of asthma. Nevertheless, vitamin D deficiency is a very common condition and there is an increasing need for suitable products for proper supplementation, allowing good compliance also in specific populations. Orally disintegrating tablets (ODT) were first developed to overcome the difficulty experienced by pediatric and geriatric patients of swallowing traditional oral dosage forms and, recently, orodispersible films (ODF) are gaining popularity as novel dosage form for assuming active pharmaceutical ingredients, vitamins, and ingredients for food supplements. This study describes a 2000 IU Vitamin D3 ODF for daily intake, consisting of hydrophilic polymers and suitable excipients, manufactured by film-casting process. Elongation-at-break (E%), Young’s modulus (Y), and tensile strength (TS) were investigated using a dynamometer. Chemical stability was evaluated assaying the vitamin D3 in the films stored at different environmental conditions. In addition, in vitro disintegration and dissolution studies were performed. Correlation existed between the mechanical properties of the film and the residual water, acting as plasticizer. The stability study showed that vitamin D3 assay was ≥90% also after 3 months at 40 °C. The film disintegrated in less than 1 min and the vitamin D3 released was ≥75% after 15 min. An ODF with suitable properties can be manufactured and used as innovative dosage form for vitamin D3 food supplements.


1966 ◽  
Vol 66 (3) ◽  
pp. 389-393 ◽  
Author(s):  
B. F. Sansom

1. The metabolism of 137Cs in dairy cows has been studied after single oral and intravenous doses and during twice daily oral dosing for 28 days.2. Gastrointestinal absorption of 137Cs was about 70-80% of the oral doses.3. After 28 days continuous feeding the mean concentration of 137Cs in milk was 0.84% daily dose/1. and the body burden of the isotope varied between 5.7 and 8.2 times the daily intake.4. When feeding of 137Cs stopped the concentration of the isotope in milk fell by a factor of five in 8 days, by a factor of ten in 16 days, by a factor of twenty in 32 days, and thereafter exponentially with a half-life of 30 days. The concentrations of the isotope in muscle decreased at first rather slowly but finally also exponentially with a half-life of approximately 30 days.


2021 ◽  
Vol 22 (4) ◽  
pp. 2128
Author(s):  
Sicheng Zhang ◽  
Duane D. Miller ◽  
Wei Li

Vitamin D, a fat-soluble prohormone, is endogenously synthesized in response to sunlight or taken from dietary supplements. Since vitamin D receptors are present in most tissues and cells in the body, the mounting understanding of the role of vitamin D in humans indicates that it does not only play an important role in the musculoskeletal system, but has beneficial effects elsewhere as well. This review summarizes the metabolism of vitamin D, the research regarding the possible risk factors leading to vitamin D deficiency, and the relationships between vitamin D deficiency and numerous illnesses, including rickets, osteoporosis and osteomalacia, muscle weakness and falls, autoimmune disorders, infectious diseases, cardiovascular diseases (CVDs), cancers, and neurological disorders. The system-wide effects of vitamin D and the mechanisms of the diseases are also discussed. Although accumulating evidence supports associations of vitamin D deficiency with physical and mental disorders and beneficial effects of vitamin D with health maintenance and disease prevention, there continue to be controversies over the beneficial effects of vitamin D. Thus, more well-designed and statistically powered trials are required to enable the assessment of vitamin D’s role in optimizing health and preventing disease.


Author(s):  
Lucile Tiemi Abe-Matsumoto ◽  
Viviane de Paula Acosta Iglesia ◽  
Regina Sorrentino Minazzi-Rodrigues

AbstractIn July 2018, the Brazilian National Health Surveillance Agency (Agência Nacional de Vigilância Sanitária, ANVISA, in Portuguese) published new regulations for food supplements, leading to changes both in the sales denomination and labeling statements, and in the composition of these products. Among dietary supplements, those containing vitamins are the most consumed by the population. The objective of the present work is to discuss the changes in the parameters established for the products containing vitamins, mainly in relation to the required and allowed concentrations of micronutrients, and to verify the impact of these changes for the population since the publication of the new standards. Until July 2018, vitamin-based products containing between 15% and 100% of the recommended daily intake (RDI) of these micronutrients were classified as vitamin supplements; above this dosage, they were considered medicines. The new legislation changed the minimum and maximum limits allowed for vitamin food supplements. Taking into account the maximum vitamin limits established for adults, the most relevant differences were the increase in these limits in a proportion of 100, 76 and 43 times in regarding vitamins E, B6 and C respectively, when compared to those previously established. For the required minimum limits, the major difference was observed for vitamin D, with a four-fold increase in its concentration. In conclusion, changes in legislation can influence the health of the population, so the ideal amounts of vitamin in supplements and the recommendation to consume these products require extensive discussion and reflection.


Author(s):  
R. A. Yakupov ◽  
G. I. Safiullina ◽  
A. A. Safiullina ◽  
E. R. Burganov

Introduction. Modern sports places high demands on the functional systems of the body at all stages of the training and competitive processes. High loads create signifi cant background for the occurrence of musculoskeletal diseases, among which the myofascial syndrome (MFS) holds the leading position. MFS negatively affects the functional readiness of the sportsman′s body and is a risk factor for injuries of the musculoskeletal system. In this regard, timely treatment of MFS is important. It creates the conditions for the improvement of sports achievements, for health maintenance and sports longevity. Treatment of patients with MFS should include methods that normalize trophism and muscle tone. Given the problem of doping, the use of non-drug methods, including osteopathy, is preferable. The goal of research — to develop a system of monitoring and osteopathic correction of myofascial disorders (MFD) and to introduce it into the practice of medical and biological support for sportsmen of different categories and levels during the annual training process.Materials and methods. 93 sportsmen (45 women and 48 men), mean age 22,1±1,1 years, representing diffe rent sports were examined. The essence of the proposed system is regular clinical and electroneurophysiological monitoring of the body condition and preventive correction of myofascial disorders in order to exclude their infl uence on the success of sports activities.Results. It was established that the proposed system of monitoring and osteopathic correction led to a signifi cant reduction in clinical and electroneurophysiological manifestations both in local and in extensive forms of myofascial disorders, which allowed to maintain the optimal functional readiness of sportsmen throughout the entire annual training cycle.Conclusion. The system of monitoring and correction of MFS with the use of osteopathic treatment can be one of the elements of medical and biological support for sportsmen during the annual training process.


2019 ◽  
Vol 9 (o3) ◽  
Author(s):  
Suaad Muhssen Ghazi ◽  
Fatin Shallal Farhan

Vitamin D deficiency is common in women with polycystic ovarian syndrome. Vitamin D plays an important physiologic role in reproductive functions of ovarian follicular development and luteinization through altering anti-müllerian hormone signaling, follicular stimulating hormone activity and progesterone production in human granulose cells. Vitamin D is precipitated in adipose fat tissues, making it notable to be used for the body as a result; obese people with high body mass index are already highly expected to have low levels of serum vitamin D.


Author(s):  
Timur Minasov ◽  
Radik Nurlygayanov ◽  
Angela Vershinina ◽  
Yulia Soboleva ◽  
Damir Akhmeldinov ◽  
...  

The results of a study of the concentration of vitamin D in blood serum of 3455 residents of Ufa are presented. Physiological values of 25(OH)D were observed in 34.9 % (274) of men and 31.7 % (847) of women, which is 32.4 % (1121) of all examined. Vitamin D deficiency was detected in 67.1 % of the examined. The level of 25(OH)D in the blood serum of residents is on average 75 nmol/L, which is the upper limit of vitamin D deficiency. Vitamin D deficiency is extremely common among residents of this region of the Russian Federation (67.1 %).


2019 ◽  
Vol 4 (1) ◽  
pp. 66
Author(s):  
Rahmaini Fitri

Pregnancy causes physiological changes in the body and as well as in the oral cavity. Dental and oral diseases associated with pregnancy that is, gingivitis, periodontitis and pregnancy granuloma. Mouth dental disease during pregnancy is not only influenced by the pregnancy itself but rather the lack of knowledge about dental and oral health maintenance. Efforts to improve the knowledge of pregnant women about oral health is done by providing information, information necessary for health education media. In this case the media is created and used to improve the knowledge of pregnant women is the booklet. This study aimed to analyze the differences in knowledge and attitudes before and after maintenance booklet oral health in pregnant women. This study is a quasi experiment with one group pre  and post test design. The sample is the first trimester pregnant women who come to the health center in Sentosa Baru Medan as many as 34 people. Analysis of the data  forcompare the average difference in scores of knowledge and attitudes before and after the intervention used the Wilcoxon test. The results showed there is an increased knowledge and attitude maintenance of oral health in pregnant women after being given a booklet with a value of p < 0.001, a percentage increase of 30% knowledge and attitudes percentage of 37%. The conclusions of this study is increased knowledge and attitude maintenance of oral health in pregnant women after being given a booklet.


Author(s):  
Marissa Silverman

This chapter asks an important, yet seemingly illusive, question: In what ways does the internet provide (or not) activist—or, for present purposes “artivist”—opportunities and engagements for musicing, music sharing, and music teaching and learning? According to Asante (2008), an “artivist (artist + activist) uses her artistic talents to fight and struggle against injustice and oppression—by any medium necessary. The artivist merges commitment to freedom and justice with the pen, the lens, the brush, the voice, the body, and the imagination. The artivist knows that to make an observation is to have an obligation” (p. 6). Given this view, can (and should) social media be a means to achieve artivism through online musicing and music sharing, and, therefore, music teaching and learning? Taking a feminist perspective, this chapter interrogates the nature of cyber musical artivism as a potential means to a necessary end: positive transformation. In what ways can social media be a conduit (or hindrance) for cyber musical artivism? What might musicing and music sharing gain (or lose) from engaging with online artivist practices? In addition to a philosophical investigation, this chapter will examine select case studies of online artivist music making and music sharing communities with the above concerns in mind, specifically as they relate to music education.


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