This study took 2 groups of women and put them on similar hypocaloric diets (meaning below maintenance level so that a caloric deficit was present). The only difference between the diets of the two groups is that 43% of one group’s daily calorie intake came from sucrose (aka table sugar), while just 4% of the other group’s daily calorie intake came from sucrose. Guess what happened? Despite one group eating a VERY high sugar diet and the other group eating a VERY low sugar diet, they both lost equal amounts of weight and body fat. Why? Because it’s NOT the source of your calories that causes fat loss, it’s the presence of a caloric deficit.
The Atkins diet has gone through numerous revisions over the years, though there was never any acknowledgement of flaws in any of the diet plans. Until recently, there have not been any studies on the safety or efficacy of the Atkins diet. Short-term studies have shown improvements in blood cholesterol and blood sugar and an increased weight loss over the first three to six months in comparison to control diets. Unfortunately, the weight loss is not sustained at one year, and the improvements that were seen were due to weight loss and not the actual diet. The long-term safety of low-carbohydrate, high-protein diets is unknown at this time. In a 2007 rating of diet books done by Consumer Reports, the Atkins diet was ranked at the bottom.
This study took 83 subjects, estimated the daily calorie requirements of each person (aka their maintenance levels), and then created a caloric deficit of 30%. They then divided them up into 3 groups. The first had only 4% of their total daily calorie intake coming from carbs. The second had 50% of their total calorie intake coming from carbs. The third had 70% of their total calorie intake coming from carbs. Guess what happened? Even though some people were eating a VERY LOW carb diet and others were eating a VERY HIGH carb diet… they all lost the same amount of weight and body fat. Why? Because low carb or high carb isn’t what makes us gain or lose fat. Calories are, regardless of how many of them come from carbs.
Until then, *assuming* your goal is fat loss, you only need whatever amount of cardio that’s needed to ensure the optimal deficit is created. So if you’re not making it happen through you’re diet (by eating less calories), you’ll need more cardio. But if you ARE making it happen through (or at least partially through) your diet, you’ll need less cardio, or even none whatsoever.
The initial phase of this diet should be avoided. This two-week phase claims to produce a weight loss of eight to 13 pounds with severe dietary restrictions; including fruit, dairy, and starches. Phases like this are usually included so people see quick results, but are limited in time because they are not nutritionally balanced and can't be followed for a long period. It tends to be more discouraging than motivating to lose quickly and to feel like you are "on a diet." Long-term weight loss and maintenance takes time, patience, and a lot of hard work. It's best to begin slowly and to always consume a nutritionally balanced diet.
That doesn't mean that we don't have certain areas where we're predisposed to put on fat. If I gain a few excess pounds, most seem to appear on my stomach. Other people tend to put on pounds in their thighs or rear. They're gaining weight everywhere, of course, but it seems to appear more readily in a certain area. On the flip side, if I lose five or six pounds, my waistline gets noticeably less soft.
Exercise is one of the best ways to get your brown fat in gear. In a study, scientists at Harvard's Dana-Farber Cancer Institute discovered that working out releases a hormone called irisin, which converts white fat to brown. Exercise for a half hour at least five days a week to turn up the burn. (Related: Here's What a Perfectly Balanced Week of Workouts Looks Like)
You don’t have to be the next Usain Bolt in the making to enjoy some serious belly-slimming results from hitting the track from time to time. Even a moderate-rate jog a few times a week can blast through that belly fat; in fact, a study conducted at Duke University Medical Center found that, over the course of an eight-month study, overweight adult study subjects who jogged 12 miles a week lost the most belly fat and burned 67 percent more calories than participants who did an equivalent amount of resistance exercise, or a combination of cardio and resistance work.
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Arteries (are-te-rease): The blood vessels that carry oxygen-rich blood away from your heart for delivery to every part of your body. Arteries look like thin tubes or hoses. The walls are made of a tough outer layer, a middle layer of muscle and a smooth inner wall that helps blood flow easily. The muscle layer expands and contracts to help blood move.
If you don’t have an established exercise routine, simply walking is the best first step toward weight loss. “Walking is a pretty good entry point for people,” says Gagliardi. This is particularly true if you have been out of the gym for a while and want to ease back into a workout routine. One small study published in The Journal of Exercise Nutrition & Biochemistry found that obese women who did a walking program for 50 to 70 minutes three days per week for 12 weeks significantly slashed their visceral fat compared to a sedentary control group.