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27
Mar
10

Obesidade em números

 

Segundo as estatísticas, e se nada fizermos , em 2025 mais de 50% da população mundial será obesa!

Em Portugal 15% da população tem obesidade.

Só na Europa , as doenças relacionadas com a obesidade provocam a morte de 320 mil pessoas por ano.

 

A minha primeira preocupação é: Que futuro terão as crianças de hoje se as coisas se mantiverem assim?

Comece já hoje a tratar de si e dos seus. Não basta viver mais mas sim melhor...

publicado por Drª Catarina Cunha às 12:33

Revista Saúde (nº 2 Anual)

 

*Acidentes vasculares cerebrais (AVC) continuam a ser a principal causa de morte.

*7 em cada 10 portugueses sofrem de dor nas costas;

*900 mil têm diabetes

*1 em cada 10 portugueses sofre de doença renal crónica;

*500 mil têm disfunção eréctil;

*1,4 milhões sofre de rinossinusite;

*doenças coronárias afectam cerca de 500 mil;

*90 mil são afectados pela doença de Alzheimer;

*cerca de 3 milhões sofrem de insónia

*reumatismo atinge ais de 2,5 milhões

*4500 mulheres por anos são diagnosticadas com cancro da mama;

*1 em cada 10 portugueses sofre de doenças da tiróide.

publicado por Drª Catarina Cunha às 12:24
24
Mar
10

22 Março 2010

Nutricionista americana faz experiência com McDonald's

'Happy Meal' resiste um ano inteiro

Uma nutricionista americana fez uma experiência com um ‘Happy Meal’ da cadeia de fast food McDonald’s, fotografando-o em 2009 e guardando-o, para comprovar o poder dos conservantes. Um ano depois o hambúrguer e as batatas continuavam quase iguais, sem qualquer tipo de odor ou outros sinais de decomposição.

O 'Happy Meal' é uma refeição que se destina a crianças e a nutricionista Joann Bruso defendeu, em declarações ao diário britânico 'Daily Mail', que o facto de não apresentar indícios de decomposição passado tanto tempo demonstra que essa comida não é saudável.

 

No decurso deste período, Bruso também afirma que nem moscas nem outros insectos foram atraídos pela refeição da cadeia McDonald's.

 

A americana afirma ainda que ‘se as moscas ignoram um ‘Happy Meal' e os micróbios não o decompõem, então o corpo de uma criança também não poderá metabolizá-lo convenientemente.

Ao longo dos anos, a cadeia de fast food americana McDonald's tem-se esforçardo para provar que os seus alimentos são de qualidade, contrariando mitos criados acerca dos mesmos.

No entanto, estudos recentes indicam que cada produto contém, em média, sete aditivos alimentares. O pão tem conservantes como cálcio e propionato de sódio, a fatia de pickle contém benzoato de sódio e nas batatas fritas são detectáveis ácido cítrico e pirofosfato ácido de sódio, que mantêm a sua cor.

A McDonald's ainda não reagiu à experiência da nutricionista mas alguns críticos chamam a atenção para o facto de Joann Bruso viver em Denver, no estado do Colorado, onde as temperaturas são particularmente baixas. Isso poderá desacelerar o processo de decomposição da comida.

 

Fonte. Correio da Manhã

publicado por Drª Catarina Cunha às 11:53
17
Mar
10

 

Comer fruta faz bem e não engorda, no entanto também é preciso ter controlo na mesma se o seu objectivo for perder peso. O que normalmente indico , para quem estiver em processo de perda de peso é ingerir cerca de 3 peças de fruta por dia. Para que tenha um ideia de uma porção de fruta aqui apresento as respectivas quantidades ( com cerca de 80gr cada)

 

-1 peça se for maçã, laranja, pêra, kiwi de tamanho grande, maracujá, banana da Madeira, diospiro, pêssego, etc.

-1 fatia média de ananás, abacaxi, melancia ou melão

-2 tangerinas, 4 ameixas, 6 nêsperas

-1 taça do tamanho de uma chávena almoçadeira de morangos, cerejas, uvas, mirtilos, framboesas, amoras.

- metade de manga, de abacate,de papaia ou de uma meloa pequena.

 

O ananás /abacaxi são óptimos para combater a celulite graças á sua acção anti-inflamatória.

A papaia assim como o ananás também são óptimos para ajudar a digestão.

 

publicado por Drª Catarina Cunha às 11:54
11
Mar
10

 http://products.mercola.com/vitamin-b12-spray/?source=nl

publicado por Drª Catarina Cunha às 10:13
09
Mar
10

Fonte : PUB MED 

 

The effect of Irvingia gabonensis seeds on body weight and blood lipids of obese subjects in Cameroon

Judith L Ngondi,1 Julius E Oben,corresponding author1 and Samuel R Minka1
1Nutrition, HIV and Health Research Unit, Department of Biochemistry, P.O Box 812, Faculty of Science, University of Yaounde I, Cameroon
corresponding authorCorresponding author.
Judith L Ngondi: jngondi@yahoo.comJulius E Oben: juliusoben@hotmail.com;Samuel R Minka: sminka@uycdc.uninet.cm
Received February 26, 2005; Accepted May 25, 2005.
Dietary fibres are frequently used for the treatment of obesity. The aim of this study was to evaluate the efficacy of Irvingia gabonensis seeds in the management of obesity. This was carried out as a double blind randomised study involving 40 subjects (mean age 42.4 years). Twenty-eight subjects received Irvingia gabonensis(IG) (1.05 g three time a day for one month) while 12 were on placebo (P) and the same schedule. During the one-month study period all subjects were on a normocaloric diet evaluated every week by a dietetic record book. At the end, the mean body weight of the IG group was decreased by 5.26 ± 2.37% (p < 0.0001) and that of the placebo group by 1.32 ± 0.41% (p < 0.02). The difference observed between the IG and the placebo groups was significant (p < 0.01). The obese patients under Irvingia gabonensis treatment also had a significant decrease of total cholesterol, LDL-cholesterol, triglycerides, and an increase of HDL-cholesterol. On the other hand, the placebo group did not manifest any changes in blood lipid components. Irvingia gabonensis seed may find application in weight lose.
Introduction
Obesity is of major primary care concern and is targeted as an international health objective in Healthy 2000, which seeks to reduce the prevalence of obesity to less than 20%. In the last 10 years, the number of overweight people has increased from 26 to 34% [1]. Conventional dietary and behavioral treatment have failed in long-term management. Dietary strategies used to manage obesity include the use of high fibre, low carbohydrates and fats diet [2,3]. Beneficial effect of dietary fibre in the management of obesity is not well established, since their mechanism of action is not known. The discovery of new medicinal plants has led to the creation of potential drugs that modify feeding behavior and metabolism and may therefore have application in weight management. The aim of the present study is to investigate the effect of Irvingia gabonensis extract on body weight.
Subjects and methods
A total of 40 obese subjects aged between 19 and 55 years were selected from a group responding to a radio advertisement. After physical examination and laboratory screening tests, diabetics, pregnant and lactating women were excluded. None of these subjects took any weight reducing medication and none was following any specific diet. The purpose, nature and potential risks of the study were explained to all patients and a written informed consent was obtained before their participation. The local research ethics committee approved the experimental protocol.
Study design
The study was as a randomised, double blind placebo-controlled crossover design, and consisted of a 4-week treatment period. Subjects were given two different types of capsules containing 350 mg of Irvingia gabonensis seed extract (active formulation) or oat bran (placebo). Three capsules were taken three times daily, one-half hour before meals (a total daily amount of 3.15 g of Irvingia gabonensis seed extract) with a glass of warm water. Capsules were identical in shape, colour and appearance, with neither patients nor researchers knowing what capsule they received. During the experimental period, subjects were examined weekly, with their body weight, body fat, waist and hip circumferences recorded each time. Subjective findings such as increased or decreased appetite, feeling of lightness and gastrointestinal pains were individually noted. Side effects of the active extract, if any were also solicited and noted during each visit. The subjects were also interviewed about their physical activity and food intake during the trial, and were instructed to eat a low fat diet (1800 Kcal) as well as keep a record for seven consecutive days (using household measurements).
Anthropometric measurements
Anthropometric measurements were done at each visit, with body weight and body fat (impedance measurement using a TANITA™ monitor Scale) measurements on fasted (12 hour) subjects wearing light clothing. Waist and hip circumferences were measured by soft non-stretchable plastic tape on the narrowest and the widest parts of the trunk.
Laboratory methods
Blood samples were collected after a 12 h overnight fast into heparinized tubes at the beginning of the study, after two weeks and at the end (4 weeks) of treatment. The concentrations of total cholesterol, triacylglycerol, HDL-cholesterol, and glucose, in plasma were measured using a commercial diagnostic kit (Cholesterol infinity, triglycerides Int, EZ HDL™ cholesterol, EZ LDL™ cholesterol, Glucose Trinder, respectively) from SIGMA Diagnostics
Statistical Analysis
Results are expressed as mean ± SEM except for anthropometric measurements. Paired Student's t-test was carried out on the start and end values of placebo andIrvingia gabonensis capsules and also on the differences between the placebo andIrvingia gabonensis crude extract.
Effect on body composition
Irvingia gabonensis induced a decrease in weight of 2.91 ± 1.48% (p < 0.0001) after two weeks and 5.6 ± 2.7% (p < 0,0001) after one month. Although the percentage of body fat was not significantly reduced with both placebo and IG, the waist circumference (5.07 ± 3.18%; p < 0.0001) and hip circumference (3.42 ± 2.12%; p < 0,0001) were significantly reduced by IG. A reduction of 1.32 ± 0.41% (p < 0.02) and 2.23 ± 1.05% (p < 0.05) was observed with the placebo after two and four weeks respectively of treatment.
Effect on blood pressure
From the second week of experimentation, the systolic blood pressure was significantly reduced by the active extract (Table 2).
Table 2
Table 2
Effect Irvingia gabonensis on systolic (SBP) and diastolic (DBP) blood pressure
 
 
Effect on blood lipids components
The plasma total cholesterol cencentration was reduced by 39.21%, triglyerides by 44.9% (p < 0,05) and LDL by 45.58%. This was accompanied by a significant increase in HDL-cholesterol of 46.852%. The CT/HDL ratio (p < 0.05) and the blood glucose level were also reduced (32.36%; p < 0.05). No significant change was observed in the placebo group.
Discussion
The soluble fibre of the seed of Irvingia gabonensis like other forms of water-soluble dietary fibres, are "bulk-forming" laxatives. Irvingia gabonensis seeds delay stomach emptying, leading to a more gradual absorption of dietary sugar. This effect can reduce the elevation of blood sugar levels that is typical after a meal [4]. Controlled studies have found that after-meal blood sugar levels are lower in people with diabetes given glucomannan in their food [5] and overall diabetic control is improved with soluble fibre-enriched diets according to preliminary [6] and controlled [7,8] trials. One double-blind study reported that glucomannan (8–13 grams per day) stabilized blood sugar levels in people with the insulin resistance syndrome [9]. Like other soluble fibers, Irvingia gabonensis seed fibre can bind to bile acids in the gut and carry them out of the body in the faeces, which requires the body to convert more cholesterol into bile acids [10]. This can result in the lowering of blood cholesterol as well as other blood lipids. Controlled double-blind [11,12] studies have shown that supplementation with several grams per day of soluble fibre significantly reduced total blood cholesterol, LDL cholesterol, and triglycerides and in some cases raised HDL cholesterol, these being comparable with effects noticed with Irvingia gabonensis.
Considering the wide use of Irvingia gabonensis in the preparation of various dishes in Cameroon, its use should be further encouraged for the purposes of control of dietary lipids as well as for weight reduction.
Table 1
Table 1
Effect of Irvingia gabonensis crude extract on body weight, body fat, waist and hip circumferences
 
Table 3
Table 3
The effect of Irvingia gabonensis on blood total cholesterol (TC), triglyceride (TRI), high density lipoprotein cholesterol (HDL-c), low density lipoprotein cholesterol (LDL-c) and glucose.
 
References
  • Bray GA. Complications of obesity. Ann Int Med. 1985;103:1052–1062. [PubMed]
  • Harris MI. Epidemiological correlates of NIDDM in Hispanics, whites, and blacks in the U.S. population. Diabetes Care. 1991;14:639–648. [PubMed]
  • Weintraub M. Long-term weight control study: conclusions. Clinic Pharmacol Ther. 1992. p. 581. Passaretti S, Franzoni M, Comin U, et al. Action of glucomannans on complaints in patients affected with chronic constipation: a multicentric clinical evaluation. Ital J Gastroenterol 1991;23:421-5.
  • Vuksan V, Jenkins DJ, Spadafora P, et al. Konjac-mannan (glucomannan) improves glycemia and other associated risk factors for coronary heart disease in type 2 diabetes. A randomized controlled metabolic trial. Diabetes Care. 1999;22:913–9. [PubMed]
  • Cesa F, Mariani S, Fava A, et al. The use of vegetable fibers in the treatment of pregnancy diabetes and/or excessive weight gain during pregnancy. Minerva Ginecol. 1990;42:271–4. [in Italian] [PubMed]
  • Vorster HH, Lotter AP, Odendaal I, et al. Benefits from supplementation of the current recommended diabetic diet with gel fibre. Int Clin Nutr Rev. 1988;8:140–6.
  • Hopman WP, Houben PG, Speth PA, Lamers CB. Glucomannan prevents postprandial hypoglycaemia in patients with previous gastric surgery. Gut. 1988;29:930–4. [PubMed]
  • Doi K. Effect of konjac fibre (glucomannan) on glucose and lipids. Eur J Clin Nutr.1995;49:S190–7. [review] [PubMed]
  • Wu J, Peng SS. Comparison of hypolipidemic effect of refined konjac meal with several common dietary fibers and their mechanisms of action. Biomed Environ Sci. 1997;10:27–37.[PubMed]
  • Arvill A, Bodin L. Effect of short-term ingestion of konjac glucomannan on serum cholesterol in healthy men. Am J Clin Nutr. 1995;61:585–9. [PubMed]
  • Walsh DE, Yaghoubian V, Behforooz A. Effect of glucomannan on obese patients: a clinical study. Int J Obes. 1984;8:289–93. [PubMed]
  • Vido L, Facchin P, Antonello I, et al. Childhood obesity treatment: double blinded trial on dietary fibres (glucomannan) versus placebo. Padiatr Padol. 1993;28:133–6. [PubMed]

publicado por Drª Catarina Cunha às 11:47
04
Mar
10

 http://www.medpoint.pt/index.php?id=37

Seleccione o distrito , a sua cidade mais próxima e encontrará profissionais á altura.

publicado por Drª Catarina Cunha às 14:59
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