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Higher Fat Meal at Breakfast May Be Healthier !
From a mouse study on diet and metabolic syndrome characteristics. The
timing variable on diet and body effects. Carb consumption on awakening is an important factor. Fat consumption upon awakening turns of fat metabolism for much of the day. Study replicated 4 times. Effects need to be verified in human trials. (Please send research money :-) ) Science News Bacon or Bagels? Higher Fat at Breakfast May Be Healthier Than You Think http://dx.doi.org/10.1038/ijo.2010.63 ScienceDaily (Apr. 1, 2010) — The age-old maxim "Eat breakfast like a king, lunch like a prince and dinner like a pauper" may in fact be the best advice to follow to prevent metabolic syndrome, according to a new University of Alabama at Birmingham (UAB) study. Metabolic syndrome is characterized by abdominal obesity, high triglycerides, insulin resistance and other cardiovascular disease-risk factors. The study, published online March 30 in the International Journal of Obesity, examined the influence exerted by the type of foods and specific timing of intake on the development of metabolic syndrome characteristics in mice. The UAB research revealed that mice fed a meal higher in fat after waking had normal metabolic profiles. In contrast, mice that ate a more carbohydrate-rich diet in the morning and consumed a high-fat meal at the end of the day saw increased weight gain, adiposity, glucose intolerance and other markers of the metabolic syndrome. "Studies have looked at the type and quantity of food intake, but nobody has undertaken the question of whether the timing of what you eat and when you eat it influences body weight, even though we know sleep and altered circadian rhythms influence body weight," said the study's lead author Molly Bray, Ph.D., professor of epidemiology in the UAB School of Public Health. Bray said the research team found that fat intake at the time of waking seems to turn on fat metabolism very efficiently and also turns on the animal's ability to respond to different types of food later in the day. When the animals were fed carbohydrates upon waking, carbohydrate metabolism was turned on and seemed to stay on even when the animal was eating different kinds of food later in the day. "The first meal you have appears to program your metabolism for the rest of the day," said study senior author Martin Young, Ph.D., associate professor of medicine in the UAB Division of Cardiovascular Disease. "This study suggests that if you ate a carbohydrate-rich breakfast it would promote carbohydrate utilization throughout the rest of the day, whereas, if you have a fat-rich breakfast, you have metabolic plasticity to transfer your energy utilization between carbohydrate and fat." Bray and Young said the implications of this research are important for human dietary recommendations. Humans rarely eat a uniform diet throughout the day and need the ability to respond to alterations in diet quality. Adjusting dietary composition of a given meal is an important component in energy balance, and they said their findings suggest that recommendations for weight reduction and/or maintenance should include information about the timing of dietary intake plus the quality and quantity of intake. "Humans eat a mixed diet, and our study, which we have repeated four times in animals, seems to show that if you really want to be able to efficiently respond to mixed meals across a day then a meal in higher fat content in the morning is a good thing," Bray said. "Another important component of our study is that, at the end of the day, the mice ate a low-caloric density meal, and we think that combination is key to the health benefits we've seen." Bray and Young said further research needs to test whether similar observations are made with different types of dietary fats and carbohydrates, and it needs to be tested in humans to see if the findings are similar between rodents and humans. "We're also working on a study right now to determine if these feeding regimens adversely affect heart function," Young said. Email or share this story: | More Story Source: Adapted from materials provided by University of Alabama at Birmingham. Journal Reference: 1. Bray et al. Time-of-day-dependent dietary fat consumption influences multiple cardiometabolic syndrome parameters in mice. International Journal of Obesity, 2010; DOI: 10.1038/ijo.2010.63 http://dx.doi.org/10.1038/ijo.2010.63 |
#2
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Higher Fat Meal at Breakfast May Be Healthier !
Susan wrote:
Rat studies have much more transferable validity to humans. Rats eat everything and metabolism is more like humans. This is one reason why rat studies work so well. Mice are different from rats; mice are herbivores, rats aren't. |
#3
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Higher Fat Meal at Breakfast May Be Healthier !
research team found that fat intake at the time of waking seems to turn on fat metabolism very efficiently and also turns on the animal's ability to respond to different types of food later in the day. When the animals were fed carbohydrates upon waking, carbohydrate metabolism was turned on and seemed to stay on even when the animal was eating different kinds of food later in the day.
I started low-carb (approx 10% carb, 10% protein, 80%-fat) diet two months back. Even if the strip show ketones in the morning, there is no metallic taste until about 11 AM. If I go for a walk, the metallic taste comes earlier. I wonder if the liver is providing extra glucose upon waking to fuel activity. If so, wouldn't extra fuel, even in the form of fat be undesirable? Or does a high-fat breakfast shut down the liver's production of glucose? Is it better to have a high-fat meal upon waking or after the morning glucose has been depleted? Is it good to do exercise in the morning to help deplete the extra glucose? |
#4
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Higher Fat Meal at Breakfast May Be Healthier !
In article
, jay wrote: research team found that fat intake at the time of waking seems to turn on fat metabolism very efficiently and also turns on the animal's ability to respond to different types of food later in the day. When the animals were fed carbohydrates upon waking, carbohydrate metabolism was turned on and seemed to stay on even when the animal was eating different kinds of food later in the day. I started low-carb (approx 10% carb, 10% protein, 80%-fat) diet two months back. Even if the strip show ketones in the morning, there is no metallic taste until about 11 AM. If I go for a walk, the metallic taste comes earlier. I wonder if the liver is providing extra glucose upon waking to fuel activity. If so, wouldn't extra fuel, even in the form of fat be undesirable? Or does a high-fat breakfast shut down the liver's production of glucose? Is it better to have a high-fat meal upon waking or after the morning glucose has been depleted? Is it good to do exercise in the morning to help deplete the extra glucose? I don't worry about the fat, but I don't try to load up on it either. Breakfast for me, until I get into my work routine, is an omelet with smoked turkey, a couple slices of cheese, tomato, onion, kalamata olives, jalapeno, and salsa. When work starts, I skip breakfast and eat my lunch at my 10 AM break, and siesta at noon, fruit and nuts at 2:30 PM. Works for me. -- "Fascism should more properly be called corporatism because it is the merger of state and corporate power." - Benito Mussolini. http://www.youtube.com/watch?v=Arn3lF5XSUg http://www.thirdworldtraveler.com/Zinn/HZinn_page.html |
#5
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Higher Fat Meal at Breakfast May Be Healthier !
jay wrote:
I started low-carb (approx 10% carb, 10% protein, 80%-fat) diet two months back. You eat lower protein than most low carbers. This makes your reports different and interesting. Even if the strip show ketones in the morning, there is no metallic taste until about 11 AM. If I go for a walk, the metallic taste comes earlier. For the purpose of dieting either is good enough. It is true that our bodies burn fat before any of the tests show ketones but for dieting we want the rate to be high. Any test that shows the body losing ketones is enough to demonstrate that. It doesn't take accuracy because it isn't about accuracy in that sense. It's a matter of knowing you're well past the point of burning fat at all, compared to not having any data at all on the rate of fat burning. If your body is losing ketones some how then you know fat is being burned more quickly than the slow pathway can supply. If your body is not losing ketones some how then all you can really know is there is the fat loss rate is below some level. There are a lot of other variables that confuse the issue but it boils down to that - Fast burning of unknown-but-not-fast burning. Once you get that it's easy to see why folks want the sticks slightly pink or the garlicy/metalic taste. So breath and urine can show at different times but it really doesn't matter. As long as either show at some point during the day you're doing great for that marker. I wonder if the liver is providing extra glucose upon waking to fuel activity. That can run away out of control in diabetics. For non-diabetics it is a self limiting process. Once enough is in the blood up goes the insulin to push it into the cells. Uhm, it in other words yes. ;^) If so, wouldn't extra fuel, even in the form of fat be undesirable? It's extremely easy to think that every gram of dietary fat equals a gram of fat not drawn from storage, but the body chemistry does not work that way. Obvious does *not* equal true. Or does a high-fat breakfast shut down the liver's production of glucose? The fat burned by the liver comes from both storage and diet. The key and anti-obvious bit is how dietary fat effects total metabolism. Dietary fat indirectly triggers glucagon release and glucagon pulls fat form storage. Lack of dietary fat indirectly reduces glucagon release and reduces the flow of fat from storage. They add up to throttling total metabolism based on intake and so on the one hand there's a starvation mode that resists loss at the bottom end and there's enough fat to move into storage in spite of the glucagon at the top end, but in the middle at "reasonable total calories" fat intake levels it runs the opposite of the obvious. More dietary fat triggers more stored fat to be pulled form storage. To me this is why you have chosen such a high fat percentage - Because it is more effective at pulling fat from storage than the same total calories with more protein and lss fat. But as the food is unpopular you need to be reminded of the chemistry on a regular basis. It runs the opposite of the obvious. Is it better to have a high-fat meal upon waking or after the morning glucose has been depleted? The timing isn't that important. Fat and protein both make hunger go away but fat seems better at keeping the hunger from reappearing. To me it's more about what your hunger levels are. Try the meal then the walk and see if you're hungry at noon. Try the walk then the meal and see if you're hungry at noon. The least hunger several hours later is your best pick. Gather the data and go with the data and worry about the theory once you have the data. Is it good to do exercise in the morning to help deplete the extra glucose? I don't think the purpose of the morning exercise is that specific. Exercise has all sorts of health benefits on its own. It increases metabolism for hours. It improves the body's ability to resist regain. |
#6
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Higher Fat Meal at Breakfast May Be Healthier !
Susan wrote:
Doug Freyburger wrote: If your body is losing ketones some how then you know fat is being burned more quickly than the slow pathway can supply ... Those strips are worthless for telling you how intense your ketosis is; The strips aren't about intensity. They are a yes/no detection of enough excess ketones to spill and as such when they show positive they give a one point datum on burn rate. But this is one of your blind sides and I've long since stopped expecting that you will ever appreciate that it is a useful data point when viewed as a binary test. The sticks have never been accurate enough in the ranges we use to serve as anything but binary. they may just be measuring excess fat caloric intake. This is true. It takes a lot of excess, though. Low carbers are often in the 100+ gram range without issue. But too much is still too much so get into the 200+ range and you'll gain steadily no matter the ketosis. I wonder if the liver is providing extra glucose upon waking to fuel activity. That can run away out of control in diabetics. For non-diabetics it is a self limiting process. Once enough is in the blood up goes the insulin to push it into the cells. Uhm, it in other words yes. ;^) The liver provides the highest glucose of the day in the early morning no matter whether you're diabetic or not. The only difference is that diabetics don't produce enough insulin to keep the serum glucose level normal. It's due to the healthy, normal diurnal cortisol rhythm. Cortisol causes the liver to produce the highest levels of glucose for the day in the early a.m. and the amount of cortisol produced drops throughout the day until a midnight low close to or at zero. Good material on cortisol. |
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