Harvard researchers following 37,698 men and 83,644 women found one daily serving of unprocessed red meat linked to a 13 percent higher risk of premature death and processed red meat to 20 percent, with cardiovascular death risk up 18 and 21 percent respectively.
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Red Meat
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Food
Processed meat like SPAM linked to high diabetes risk- study
In the Strong Heart Family Study of American Indians followed five years, those eating the most processed meat faced 63 percent higher diabetes risk, and the heaviest SPAM eaters double the risk. Unprocessed red meat showed no link, and results may not carry to other populations.
Food
Red meat, processed meat up pancreatic cancer risk
A British Journal of Cancer meta-analysis of eleven prospective studies and 6,643 cases found each additional 120 grams of red meat a day was linked to a 13 percent higher pancreatic cancer risk, 29 percent in men and no association in women, and 50 grams of processed meat to 19 percent.
Food
Red meat linked to metabolic syndrome, type 2 diabetes and cardiovascular disease
In the Multi-Ethnic Study of Atherosclerosis, people with the highest intakes of heme iron and zinc from red meat were 25 and 29 percent more likely to develop metabolic syndrome, while high vitamin E intake ran the other way. The article stresses this was not a trial, so cause remains unproven.
Food
Red Meat Increases Risk of Dying
Harvard researchers followed 121,342 people for up to 28 years and found each daily serving of red meat raised the risk of dying by 12%, and each serving of processed meat by 20%. An accompanying editorial argued cutting back would also lower costs and environmental impact.
Food
Processed meat linked to diabetes type 2 - studies
In the Strong Heart Family Study, American Indians with the highest processed meat intake were 63% more likely to develop type 2 diabetes over five years than those with the lowest, while unprocessed red meat showed no link, unlike in earlier Harvard findings.
Food
Processed meat, red meat up pancreatic cancer risk
A meta-analysis of prospective studies tied 50 grams a day of processed meat to 19% higher pancreatic cancer risk in both sexes, and 120 grams a day of red meat to 13% higher risk overall and 29% among men. Women eating that much red meat showed no increase.
Food
Red meat boosts kidney cancer risk - study
A National Cancer Institute cohort of 492,186 adults followed about nine years found people eating the most red meat, 62.7 grams a day, were 19 percent more likely to develop kidney cancer than those eating 9.8 grams, and twice as likely to develop papillary tumors.
Food
Red meat linked to high stroke risk - study
Following 84,010 women and 43,150 men for more than two decades, researchers reporting in Stroke found that swapping a daily serving of red meat for poultry, nuts, fish or dairy was linked to 10 to 27 percent lower stroke risk. Legumes and eggs made no difference.
Food
Processed red meat may boost diabetes risk in women
Among 66,118 French women followed from 1993 to 2007, those eating five or more servings of processed red meat a week were 30 percent more likely to develop type 2 diabetes. A Harvard analysis put the excess at 51 percent for 50 grams of processed meat a day.
Food
Red meat, dairy products may affect breast cancer risk
Among 766 postmenopausal women, the highest red meat eaters had 10 percent less sex hormone-binding globulin, and the highest dairy eaters about 15 percent more total and free estradiol, which has been linked to breast cancer risk. Processed meat, chicken, fish and eggs showed no link.
Cancer
Eating too much red meat may cause stomach cancer
Among 481,000 people in the EPIC study, with 444 gastric cancers identified, doubling heme iron intake came with 13% higher risk after adjustment. The link was statistically significant only in those whose plasma vitamin C fell below 39 mmol/L.
Heart & Blood
Processed meat, red meat linked to higher stroke risk
Among 40,291 Swedish men followed 10 years, those eating the most processed meat had 23 percent more strokes overall and 18 percent more cerebral infarctions than those eating the least. Fresh red meat showed no significant link to stroke risk.
Diabetes
Processed, red meats linked to elevated risk of type 2 diabetes mellitus
Harvard researchers pooled data on more than 200,000 health professionals and found 100 grams of unprocessed red meat a day tracked with 19 percent higher type 2 diabetes risk, and 50 grams of processed meat with 51 percent higher. Swapping red meat for nuts or whole grains tracked with lower risk.
Food
Red meat, processed meat linked to higher risk of bladder cancer
A meta-analysis of 21 studies found people eating the most red meat and processed meat were 17 and 10 percent more likely to be diagnosed with bladder cancer. Overall meat consumption showed no association; the link appeared in US and Canadian studies.
Cancer
Diet, breast density and breast cancer risk
Harvard researchers compared 1,042 postmenopausal women with breast cancer to 1,794 without and found those with 50% or more breast density had triple the risk of women below 10%. Denser breasts went with in situ, larger, estrogen-receptor-negative and higher-grade tumours.
Cancer
Red meat linked to elevated breast cancer risk
In a Vanderbilt study of 2,386 breast cancer cases and 1,703 controls, women eating the most well-done red meat were 50 percent more likely to be diagnosed than those eating the least. The link ran stronger among postmenopausal women.
Cancer
Eating vegetables, fruits cuts risk of cervical cancer
A case-control study of 268 Uruguayan cervical cancer patients linked a mostly plant-based diet to 40 percent lower risk, while women eating red meat and drinking alcohol were 79 percent more likely to be diagnosed. Smoking showed no association in this group.
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