"Cenas e coisas" que dizem que fazem bem (ou mal). Agregador de algumas notícias relacionadas com saúde. Os "disclaimers" habituais e mais alguns aplicam-se: O uso da informação aqui veiculada é por conta e risco de cada um. Consulte-se um médico ou nutricionista (conforme o caso) antes de adotar alguma medida ou informação directa ou indirectamente publicada ou veiculada.
quarta-feira, 16 de fevereiro de 2022
Dieta e mais anos de vida?
domingo, 13 de outubro de 2019
Dieta e depressão?
Sim:
https://www.sciencefocus.com/news/a-healthy-diet-could-reduce-the-symptoms-of-depression/
Citando:
"“Modifying diet to reduce processed food intake and increase consumption of fruit, vegetables, fish and olive oil improved depression symptoms in young adults,” say the study’s authors. “These findings add to a growing literature showing a modest change to diet is a useful adjunct therapy to reduce symptoms of depression.”"
quinta-feira, 9 de agosto de 2018
Alterações na alimentação vs. uso de antibióticos...
... estudado:
https://medicalxpress.com/news/2018-08-scientists-common-dietary-elements-lethal.html
Citando:
"Salk Institute researchers report that giving mice dietary iron supplements enabled them to survive a normally lethal bacterial infection and resulted in later generations of those bacteria being less virulent. The approach, which appears in the journal Cell on August 9, 2018, demonstrates in preclinical studies that non-antibiotic-based strategies—such as nutritional interventions—can shift the relationship between the patient and pathogens away from antagonism and toward cooperation.
"Antibiotics and antimicrobials are one of the most important advances in medicine, and we definitely need to continue efforts focused on developing new classes of antimicrobials," says Associate Professor Janelle Ayres, who holds the Helen McLoraine Developmental Chair and is senior author of the new paper. "But we need to learn from history and think about other ways to treat infectious diseases. Our work suggests that instead of killing bacteria, if we promote the health of the host, we can tame the behavior of the bacteria so that they don't cause disease, and we can actually drive the evolution of less dangerous strains.""
(...)
"For the current work, Ayres' team studied a naturally occurring gastrointestinal infection in mice caused by Citrobacter rodentium (CR), which leads to diarrhea, weight loss and, in extreme cases, death. (CR is related to pathogenic E. coli that are associated with human food recalls.)"
segunda-feira, 26 de fevereiro de 2018
6 factores de risco para o cancro da próstata
https://www.express.co.uk/life-style/health/924382/cancer-symptoms-prostate-signs-causes
Citando:
"[Factors] include:
Age - risk rises as you get older and most cases are diagnosed in men over 50 years of age.
Ethnic group – prostate cancer is more common among men of African-Caribbean and African descent than in men of Asian descent.
Family history – having a brother or father who developed prostate cancer under the age of 60 seems to increase the risk of you developing it. Research also shows that having a close female relative who developed breast cancer may also increase your risk of developing prostate cancer.
Obesity – recent research suggests that there may be a link between obesity and prostate cancer.
Exercise – men who regularly exercise have also been found to be at lower risk of developing prostate cancer.
Diet – research is ongoing into the links between diet and prostate cancer. There is evidence that a diet high in calcium is linked to an increased risk of developing prostate cancer."
terça-feira, 20 de fevereiro de 2018
ADN e perda de peso?
Não:
http://www.latimes.com/science/sciencenow/la-sci-sn-diet-dna-20180220-story.html
Citando:
"Trying to lose weight? Researchers have some good news: You can chose either a low-fat or low-carb diet. As long as you stick with it, you can slim down no matter what your genetic make-up or metabolic particulars.
And here's an added bonus: You won't even have to count your calories."
sexta-feira, 24 de novembro de 2017
Dieta tão eficaz como medicação para baixar a tensão?
Parece que sim:
https://health.spectator.co.uk/low-salt-diet-as-effective-as-drugs-for-hypertension/
Citando:
"A low-salt diet combined with the DASH diet (The Dietary Approaches to Stop Hypertension) substantially lowers systolic blood pressure – the top number in a blood pressure test – according to new research published in the Journal of the American College of Cardiology.
The DASH diet is rich in fruits, vegetables and whole grains, along with low-fat or fat-free dairy, fish, poultry, beans, seeds and nuts.
The study was designed to examine the effects of combining the two diets in adults with early or modest forms of high blood pressure – those considered to be at greatest risk of developing more severe forms of hypertension known to increase the likelihood of stroke, kidney disease, heart attacks and heart failure."
domingo, 20 de agosto de 2017
Cuidado com as dietas da moda (5-day cleansing)?
https://www.theguardian.com/lifeandstyle/2017/aug/11/why-we-fell-for-clean-eating
Citando:
"n the spring of 2014, Jordan Younger noticed that her hair was falling out in clumps. “Not cool” was her reaction. At the time, Younger, 23, believed herself to be eating the healthiest of all possible diets. She was a “gluten-free, sugar-free, oil-free, grain-free, legume-free, plant-based raw vegan”. As The Blonde Vegan, Younger was a “wellness” blogger in New York City, one of thousands on Instagram (where she had 70,000 followers) rallying under the hashtag #eatclean. Although she had no qualifications as a nutritionist, Younger had sold more than 40,000 copies of her own $25, five-day “cleanse” programme – a formula for an all-raw, plant-based diet majoring on green juice.
But the “clean” diet that Younger was selling as the route to health was making its creator sick. Far from being super-healthy, she was suffering from a serious eating disorder: orthorexia, an obsession with consuming only foods that are pure and perfect. Younger’s raw vegan diet had caused her periods to stop and given her skin an orange tinge from all the sweet potato and carrots she consumed (the only carbohydrates she permitted herself). Eventually, she sought psychological help, and began to slowly widen the repertoire of foods she would allow herself to eat, starting with fish. She recognised that the problem was not her veganism, per se, but the particularly rigid and restrictive diet regime she had imposed on herself.
As Younger slowly recovered from her eating disorder, she faced a new dilemma. “What would people think”, she agonised, “if they knew the Blonde Vegan was eating fish?” She levelled with her followers in a blogpost entitled Why I’m Transitioning Away from Veganism. Within hours of announcing her new diet, Younger was receiving irate messages from vegans demanding money back from the cleanse programmes and T-shirts they had bought from her site (featuring slogans such as “OH KALE YES”).
She lost followers “by the thousands” and received a daily raft of angry messages, including death threats. Some responded to her confession that she was suffering from an eating disorder by accusing her of being a “fat piece of lard” who didn’t have the discipline to be truly “clean”."
quarta-feira, 16 de agosto de 2017
Futuro: como matar de fome um cancro sem matar o paciente?
https://www.economist.com/news/science-and-technology/21702169-how-starve-cancer-without-starving-patient-fast-thinking?fsrc=scn/fb/te/pe/ed/
Citando:
" (...) think about how he might mimic the benefits of starvation while minimising its problems. The result is a diet rich in vitamin D, zinc and fatty acids essential to TILs’ performance, while being low in the proteins and simple sugars that tumours make ready use of."
quinta-feira, 25 de maio de 2017
Restrição calórica é uma má maneira de perder peso (starvation mode comprovado)?
http://www.dailymail.co.uk/health/article-4533692/Starvation-mode-DOES-exist-Brain-stops-burning-fat.html
Citação:
"There has been much debate over whether 'starvation mode' - the idea that the body slows metabolism and conserves energy when you follow a low calorie diet - is fact or fiction.
Now a study may help explain why restricting calories can be an inefficient way to lose weight.
Cambridge University scientists have discovered that key brain cells act as a trigger to prevent us burning calories when food is scarce.
'Weight loss strategies are often inefficient because the body works like a thermostat and couples the amount of calories we burn to the amount of calories we eat,' says lead author of the research Dr Clémence Blouet.
'When we eat less, our body compensates and burns fewer calories, which makes losing weight harder.'
We have known that the brain must regulate this caloric thermostat, but how it adjusts calorie burning to the amount of food we've eaten has been 'something of a mystery', Dr Blouet said."
sexta-feira, 19 de maio de 2017
Perda de peso associada a quando se come...
... Não apenas ao que se come:
http://fox6now.com/2017/05/19/weight-loss-can-be-tied-to-when-not-just-what-you-eat/
Citando:
"“What we have seen is that people on diets with the same number of calories who front-load calories to the earlier part of the day fare better in terms of subjective and objective measures of satiety,” Freuman said. “They feel more satiated in evening, and there are actually differences in their hunger and satiety hormones … and this seems to contribute to weight loss success.”"
quarta-feira, 3 de maio de 2017
Dieta sem glúten com impacto na saúde (para não celíacos, redução cereais integrais)?
http://m.huffpost.com/uk/entry/uk_5909894be4b02655f8422625
Citando:
"A team of researchers said people who follow a gluten-free diet may be putting their health at risk because they are not eating whole grains, which are known to reduce the risk of heart disease.
They said their message is for people who do not suffer from coeliac disease - a common digestive condition where the small intestine becomes inflamed and unable to absorb nutrients due to an adverse reaction to gluten."
(...)
"The results showed that, over a 26-year follow-up, no significant association was found between gluten intake and the risk of heart disease.
But the researchers said analysis showed that restricting gluten may lead to a lower intake of whole grains."
Contar calorias equivale a jejuar (para controlo peso)?
Citando:
"A new obesity study suggests either approach can be effective for weight loss. Intermittent or alternate-day fasting requires routinely alternating between eating little or no food and then feasting in your daily diet. It has become a growing weight loss trend in the US, the UK and other regions around the world. The small study, published in the journal JAMA Internal Medicine, suggests that there is no significant difference"
domingo, 26 de março de 2017
Redução no sal pode ajudar quem acorda para ir à casa de banho
http://www.bbc.com/news/health-39382339
Citando:
O que é sal a mais (no RU):
"Adults in the UK are recommended to eat no more than 6g of salt a day, equal to 2.4g of sodium.
Children should eat less - only 2g of salt for ages one to three, rising to 5g for seven to 10-year-olds.
After age 11, children can have up to 6g.
Which foods are high in salt?
Bread and breakfast cereals can contain more salt than you think.
Bacon, ham, cheese, crisps and pasta sauces are also high in salt.
When buying food, look at the figure for salt per 100g on the packaging.
High salt content is more than 1.5g salt (0.6g sodium) per 100g. These foods may be colour-coded red."
Sobre o estudo:
"They followed patients who had a high salt intake and sleeping problems for three months, after giving them advice to cut back on salt in their diet.
On average, trips to the loo fell from more than twice a night to just one.
This happened at night as well as during the day, and their quality of life also improved.
Feeling the urge
Conversely, 98 people in the study ended up eating more salt than normal and found they went to the loo more often at night-time.
(...)
"This work holds out the possibility that a simply dietary modification might significantly improve the quality of life for many people," he said."
sexta-feira, 10 de março de 2017
Relação inversa entre glúten e diabetes tipo 2?
Por isso cuidado com as dietas livres de glúten:
http://wap.business-standard.com/article/current-affairs/beware-of-diet-fads-a-gluten-free-food-could-increase-risk-of-diabetes-117031000240_1.html
Citando:
"Inverse association
What the Harvard group behind this study have reported is that there is an inverse association between gluten intake and type 2 diabetes risk. This means that the less gluten found in a diet the higher the risk of developing type 2 diabetes.
The data for this exciting finding comes from three separate, large studies which collectively included almost 200,000 people. Of those 200,000 people, 15,947 cases of type 2 diabetes were confirmed during the follow-up period. Analysis showed that those who had the highest intake of gluten had an 80% lower chance of developing type 2 diabetes compared to those who had the lowest levels of gluten intake.
This study has important implications for those who either have to avoid or choose to avoid gluten in their diet."
(...)
"While there is some evidence for a link between coeliac disease and type 1 diabetes, this is the first study to show a link between gluten consumption and the risk of type 2 diabetes. This is an important finding. For those who choose a gluten-free diet because they believe it to be healthy, it may be time to reconsider your food choices."
quinta-feira, 2 de março de 2017
Impacto de dietas na saúde cardiovascular
Várias dietas analisadas em termos de impacto na protecção da saúde do coração:
http://abcnews.go.com/Health/food-fads-diet-trends-fare-heart-health/story?id=45777365
Os resultados não saem fora do que normalmente se ouve falar (mas há muitos mas nestas recomendações, nomeadamente o uso da palavra "moderação").
Citando:
"After an in-depth review of the scientific data, researchers found the most heart-healthy diet includes foods like extra-virgin olive oil, antioxidant-rich berries, green leafy vegetables, plant-based proteins, nuts in moderation and can include lean meats. To cut down on cholesterol, the study authors suggest limiting or eliminating coconut and palm oils, which are high in saturated fatty acids, and eggs, which raise the level of cholesterol in the bloodstream.
"Dietary requirements haven’t really changed," Freeman continued. "The diet that is most cardioprotective is mostly plant based ... predominantly fruits, vegetables, whole grains, and limited amounts of animal products if any.""
quinta-feira, 23 de fevereiro de 2017
Livro sobre como reverter a Diabetes tipo 2
... apenas com alterações do que se come:
http://www.dailymail.co.uk/health/article-3810684/Eat-beat-diabetes-Guilt-free-sweet-treats-scrumptious-puds-won-t-believe-low-sugar-never-need-buy-loaf-again.html
Amazon:
https://www.amazon.co.uk/d/Books/8-Week-Blood-Sugar-Diet-reprogramme/1780722400
quinta-feira, 12 de janeiro de 2017
Sobre a dieta "Slimming World" que nos deixa comer tudo o que se quiser
https://www.thescottishsun.co.uk/living/418882/what-is-the-slimming-world-diet-how-does-it-work-is-it-safe-and-are-there-any-success-stories/
Citando:
"What is the Slimming World diet, how does it work, is it safe and are there any success stories?
Everything you need to know about the diet which lets you eat as much as you want"
sábado, 10 de setembro de 2016
Dieta para ganhar peso
https://www.publico.pt/sociedade/noticia/alguma-vez-pensou-numa-dieta-para-ganhar-peso-1743634
quarta-feira, 1 de junho de 2016
Dieta radical é melhor maneira de prevenir diabetes do tipo 2
Citando:
"With evidence from other studies, we can be confident the 10.8 per cent weight loss from the diet, if maintained, would be associated with a 90 per cent reduction in diabetes risk over three years.”
(...) “The more weight lost and maintained, the greater the proportion of people who remain diabetes-free. They need to lose and keep off about 10 per cent of their weight.”