Wed, Apr-10-19, 08:53
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Senior Member
Posts: 15,075
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Plan: mostly milkfat
Stats: 190/152.4/154
BF:
Progress: 104%
Location: Ontario
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Substituting healthy plant proteins for red meat lowers risk for heart disease
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Substituting healthy plant proteins for red meat lowers risk for heart disease
Diets that replaced red meat with healthy plant proteins led to decreases in risk factors for cardiovascular disease (CVD), according to a new study from Harvard T.H. Chan School of Public Health and Purdue University.
The study is the first meta-analysis of randomized controlled trials examining the health effects of red meat by substituting it for other specific types of foods.
The study was published in the journal Circulation.
"Previous findings from randomized controlled trials evaluating the effects of red meat on cardiovascular disease risk factors have been inconsistent. But our new study, which makes specific comparisons between diets high in red meat versus diets high in other types of foods, shows that substituting red meat with high-quality protein sources lead to more favorable changes in cardiovascular risk factors," said Marta Guasch-Ferré, research scientist in the Department of Nutrition and lead author of the study.
The study included data from 36 randomized controlled trials involving 1,803 participants. The researchers compared people who ate diets with red meat with people who ate more of other types of foods (i.e. chicken, fish, carbohydrates, or plant proteins such as legumes, soy, or nuts), looking at blood concentrations of cholesterol, triglycerides, lipoproteins, and blood pressure -- all risk factors for CVD.
The study found that when diets with red meat were compared with all other types of diets combined, there were no significant differences in total cholesterol, lipoproteins, or blood pressure, although diets higher in red meat did lead to higher tryglyceride concentrations than the comparison diets. However, researchers found that diets higher in high-quality plant protein sources such as legumes, soy, and nuts resulted in lower levels of both total and LDL ("bad") cholesterol compared to diets with red meat.
The results are consistent with long-term epidemiologic studies showing lower risks of heart attacks when nuts and other plant sources of protein are compared to red meat, the authors said. The findings also suggest that the inconsistencies found in prior studies regarding the effects of red meat on cardiovascular risk factors may be due, in part, to the composition of the comparison diet. They recommended that future studies take specific comparisons into account.
"Asking 'Is red meat good or bad?' is useless," said Meir Stampfer, professor of epidemiology and nutrition and senior author of the study. "It has to be 'Compared to what?' If you replace burgers with cookies or fries, you don't get healthier. But if you replace red meat with healthy plant protein sources, like nuts and beans, you get a health benefit."
The authors recommended adherence to healthy vegetarian and Mediterranean-style diets, both for their health benefits and to promote environmental sustainability.
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Excuse my emphasis. Don't know what came over me.
If you replace burgers with cookies and fries, yes that might not work. But if you replace cookies and fries with red meat, that might work, depending on what's left in the diet.
Replacing red meat with plant protein sources, nuts and beans--oookay. Are there studies where nuts, for instance, are just added to the diet, without worrying over its red meat content, and similar improvements in blood lipids are achieved? Is the effect from the removement of red meat, in which case, how come no benefit showed up replacing red meat with fish or chicken? Or are the improvements due to inclusion of something--"good" fats or even protein in nuts and beans, or particular types of fiber, or micronutrients that are rich in these foods?
https://www.eurekalert.org/pub_rele...n-nrs010615.php
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New research shows snacking on almonds instead of a high-carb snack reduced belly fat and other heart disease risk factors
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Asking what you can eat instead of red meat to make you healthier might be a decent question. Maybe almonds and other high fat nuts work. The other question asked here is, what can we eat almonds instead of to make us healthier? Are we better off eating almonds instead of red meat, or instead of "high carb snacks?"
I see people going out of their way to find something wrong with red meat. And me going out of my way to find reasons to shrug. We all have our bias.
https://www.sciencedaily.com/releas...90409141808.htm
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