And eating less isn't the only way to get this effect, Greenwood said.
There are well-known treatments--eating less and exercising more are two--that don't require the intervention of doctors.
For much of his life he was a passionate believer in the power of eating less.
Eating less may prevent the onset of diseases such as Alzheimer's and Parkinson's, according to research.
Oddly, the official figures suggest that Americans are eating less fat than in the early 1980s.
Eating less meat could help slow this unsustainable increase, but U.S. farms won't suffer as a result.
The meat industry would argue that eating less meat would damage the bottom line of American farmers.
Similar to eating less and moving more, the trick to retiring on time is to save without thinking.
And as they munch soya steaks, diners relish new evidence of the health benefits of eating less red meat.
Memmer said he kept his plan simple: eating less and consuming fewer calories.
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"When people are eating soy protein, they are likely eating less of something else, such as red meat, " she says.
If I keep exercising and eating less and have just one glass of wine with dinner instead of two, maybe that will work.
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Eating less meat is a simple way to reduce the pressure on global resources and help ensure that everyone has enough to eat.
Why are we not shamed into eating less when confronted with the sometimes-shocking knowledge of how many calories are in our favorite foods?
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For its part, the National Bread Leadership Council found in 2003 that 40% of Americans surveyed said they were eating less bread than they were in 2002.
Soon after, she restricted her calorie intake to 1, 000 calories a day (experts warn against eating less than 1, 200 calories a day because it sends your body into starvation mode).
My own organization, Oxfam, an international relief and development organization, recently endorsed the idea of eating less meat and dairy as part of our GROW campaign to fight global hunger.
The uncertain food supply means they regularly go through cycles of too much and too little food (it also means that they are often restricted to eating less than they could manage if food were omnipresent).
UK-based The DoNation empowers thon participants to ask friends not for money, but rather to adopt certain behaviors that will reduce their carbon footprint such as cycling to work, installing solar panels or eating less meat.
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One thing to consider is that many people feel better on a gluten free diet because they are eating less food overall (due to fewer choices) and cutting out most sources of refined grains, both of which are a good idea even if you don't have gluten issues.
In a study co-authored by Rolls and published in a 2011 issue of the American Journal of Clinical Nutrition, people who ate an entree made up of 25% pureed vegetables -- in this case, squash and cauliflower were blended into macaroni and cheese -- consumed 360 fewer calories per "volumize" the dish, tricking your brain into thinking you're eating more when in fact you're eating less.
Increasing worries about weak income growth and unstable economies have left consumers eating out less.
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Experiments on mice have shown that eating significantly less food can extend lifespans, so long as the food is highly nutritious.
After going through this exercise, our helpline caller discovered that he and his wife could live within their means simply by eating out less.
Getting hair cuts at home or eating at home more and eating out less would have a similar impact on GDP without necessarily reducing standards of living.
Similarly, he adds, children who eat dinner at the table with their family aren't eating in front of the TV, a bad habit that often leads to less mindful eating and doesn't teach children how to regulate their food intake.
If you're selling sub-prime products to investors, it should be less like eating a burger - hidden inside a bun - more like eating a doner kebab.
It also looked to less meat-eating to reduce the high carbon cost of producing it.
For this national expansion there can only be two explanations: Americans are eating more, or exercising less.
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