In mice genetically altered to block the pathway, even with a high fat diet available, they were able to maintain a healthy weight.
Those mice showed far lower weight gain and body fat than those fed the same high fat diet, and even lower than mice that were more active.
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The research team then wanted to find out what these neurons do, so they studied the new hypothalamus neurons in mice that had been fed a high fat diet since birth.
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But when they became adults, the mice fed a high fat diet showed four times the neurogenesis of the normal mice, and gained significantly more weight and had much higher fat mass.
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In the study at the University of Michigan, researchers gave mice a high-fat diet, and they became obese.
In mice, a protein connected to inflammatory reactions appeared to be switched on when the animals were given a high fat, high sugar diet.
The study compared mice fed a high-fat diet with those fed a normal, healthy diet, and exposed some members of both groups daily to fine particulate matter, controlling for all other factors.
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For rats on the high-fat diet, the group that ate both types of potato chips gobbled more food, gained more weight, and developed more fatty tissue than the rats that ate only the high-calorie chips.
To them, it is entirely understandable that low-risk things like alar, cyclamates and nuclear power are feared or banned, while hazardous activities like riding a bicycle, eating a high-fat diet and driving at night are as prevalent as ever.
In a study of people with a gene that put them at higher risk for Alzheimer's, those who ate a high-fat diet were seven times more likely to develop the disease than those who ate a low-fat diet, researchers reported.
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Many researchers believe that it's actually cheaper, in our fast-food society, to eat a high-fat, high-calorie diet than it is to stay slim.
After consuming the tomatoes along with a high-fat and high-calorie diet, there were a number of signs suggesting a beneficial effect, including significantly lower levels of inflammation, higher levels of the antioxidant paraoxonase, higher HDL levels, and less atherosclerotic plaque.
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Dr. SHIRLEY BERESFORD (Epidemiology, Washington State University): It would not be an unreasonable inference to say these women had been consuming high levels of fat in their diet for maybe 40 years.
The study (PDF) used laboratory rats that were fed either a high-fat or low-fat diet of rat vittles.
Others at higher risk include those over 50s, men with an enlarged prostate and men who enjoy a diet high in saturated fat and who smoke.
Diners haven't been exposed to quality fat in recent years because pigs raised on a bad diet or living in high-stress environments will have yellowish fat that smells putrid.
But Miller, now 65, a former hospital food-service director in West Virginia, discovered a lifesaver--not more drugs but a program of daily exercise, stress reduction, group support and a diet very low in fat and high in vegetables and whole grains.
In fact, research shows that having less variety in your diet, especially when it comes to high fat and sugary foods, can help with weight loss and weight maintenance.
These are that eating a diet which is low in fat and high in starch reduces the risk to the consumer of developing heart disease and cancer, and also promotes weight loss.
She said it was also important to remember that regular physical activity combined with a diet high in fruit and vegetables and low in saturated fat was still the best way to combat high cholesterol and reduce the risk of heart disease.
The diet is high in animal protein, which could lead to an excess intake of saturated fat, resulting in elevated cholesterol levels, an increased risk of heart disease and increased risk of certain types of cancer.
So as long as you skip the high-fat toppings such as butter, bacon bits and sour cream, including a baked potato in your diet on occasion is fine.
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