A population-based study reporting concerns over beta-carotene and other carotenoids and lung cancer in smokers was based on invalid methodology, questionable statistical evaluations, and speculative explanations, says a German professor.
Long-term supplementation with beta-carotene may increase a smoker’s risk of lung cancer says a new population-based study from the University of North Carolina at Chapel Hill.
Positive results for vitamin E and beta-carotene from observational studies are continuing to be cited in the literature despite contradictory evidence from randomised trials, says a new analysis.
A diet rich in flavonols from foods such as onions, apples and
berries may cut the risk of developing pancreatic cancer by about
25 per cent, a multi-ethnic study has reported.
Lycopene, the carotenoid most commonly associated with tomatoes,
may not offer protection from prostate cancer, says a new study
that seems at odds with the majority of the literature.
A meta-analysis of 68 randomised trials with antioxidant
supplements has reported that vitamins A and E, and beta-carotene
may increase mortality risk by up to 16 per cent, but vitamin C did
not have an effect on mortality and the...
Increased intake of flavonoids, particularly, flavones and
flavonols could cut the risk of kidney cancer by 32 and 31 per
cent, respectively, says a new study from Italy.
Consuming six or more portions of fruit and vegetables very day
could halve the risk of kidney cancer in men, says an
epidemiological study from Harvard University.
Every extra of fruit or vegetable consumed daily could cut the risk
of heart disease by four percent, says a meta-analysis of almost a
quarter of a million people, giving people even more reason to seek
out the nutrient-rich foods.
Increasing the daily intake of selenium from dietary and
supplementary sources, could cut the risk of bladder cancer by 70
per cent, suggests a new study from Belgium.
A new epidemiological study has presented evidence that consumption
of fatty fish can help prevent the most common form of kidney
cancer in women, potentially providing yet another healthy point on
which to leverage sales of omega-3...
Coverage of the New Scientist article questioning the benefits of
antioxidant supplements has generated a flurry of feedback from
industry and health care practioners, in agreement with and
disputing the arguments.
The benefits of antioxidant supplements, from vitamins and
carotenoids to polyphenols, are just a 'myth', says an article in
the New Scientist magazine.
Higher intake of vitamin K, found naturally in cabbage, spinach,
cauliflower, and other green leafy vegetables, could reduce the
risk of osteoarthritic knee problems by 40 per cent, says new
research.
Increased flavonoid intake might offer protection against breast
and ovarian cancer, said scientists at this week's 97th Annual
Meeting of the American Association for Cancer Research.
A review of 18 studies has led researchers to claim that soy
products may protect against breast cancer, but that consumers
should be wary of high-dose supplements - conclusions that have
been questioned by an industry association.
Drinking as much as six cups of coffee per day has no effect on the
risk of colon or rectal cancer, according to Swedish researchers,
adding to evidence that coffee and the cancer are not linked.
Little wonder consumers are confused about which foods are good for
them, and which bad, when scientists use methods with almost no
chance of meaningful results.
The US Centers for Disease Control and Prevention (CDC) has warned
that the lower incidence of cardiovascular disease (CVD) amongst
moderate drinkers, compared with heavy- or non-drinkers, may be
attributable to factors other than...
Eating beans or lentils at least twice a week may reduce a woman's
risk of developing breast cancer, according to research designed to
investigate the benefits of the plant compounds flavonols,writes
Dominique Patton.
Consuming fruit and vegetables has no effect on reducing breast
cancer risk, according to a large study that looks set to override
previous evidence showing potential protective effects.
Increased fruit and vegetable consumption is associated with a
decreased risk of cardiovascular disease but not cancer, according
to a new study that suggests the cancer-protective effect may have
been 'overstated'.
Higher iron stores are associated with an increased risk of type 2
diabetes in healthy women. independent of known diabetes risk
factors, report researchers in this week's issue of JAMA.
Women who drink regularly may need to increase their folate intake
to prevent a raised risk of chronic disease, report researchers in
a new study, examining the impact of alcohol on women with low
folate levels.
Soy protein, widely consumed as a meat alternative or in sports
nutrition products, could help diabetes patients protect their
hearts and kidneys from damage caused by the disease, shows a small
trial.
A new report shows that multivitamin use by elderly people could
save up to $1.6 billion in Medicare over the next five years. Also
this week a new study finds that long-term use of vitamins may be
associated with reduced risk of...
Women need to take urgent action to reduce their risk of heart
disease, said the World Health Organisation (WHO) yesterday, as it
revealed study results to show that heart disease is a bigger
killer of women than cancer.
Is diabetes really on the up? A new study suggests that the
increase in the prevalence of diabetes may be due to better
detection and people surviving longer with the disease not an
increase in new cases.
With cancer rates expected to rise 50 per cent to 15 million by
2020, a WHO report suggests that if governments act now, there are
several ways to reduce these rates - especially through diet.
A European study aims to understand the impact of heterocyclic
amines - developed in some heated foods - on the development of
cancers. Preliminary findings suggest that plant foods could
provide protection.
Women should start adding more tomato products to their diets,
according to the results of a study presented this week by Harvard
Medical School researchers at the American College of Cardiology
annual meeting.
Moderate daily consumption of around 700mg of calcium could be
effective in fighting colon cancer, according to a recent study by
researchers at the Harvard School of Public Health in Boston.
A compound found in certain foods may be a cause of testicular
cancer in young men, according to new research published in this
month's Cancer Causes and Control journal.
Alcohol can be a major risk factor for breast cancer but a
'healthy' or 'western' diet does not seem to have any adverse
effect. These are the findings of a recent report in the journal
Cancer Epidemiology, Biomarkers...
It is the general belief today that low blood cholesterol is key in
reducing cardiovascular disease. This opinion has now been
challenged by data from the Honolulu Heart Program, a large
epidemiological study of cardiovascular disease.
