BEST DIET : LOSE WEIGHT WITH BEST TRICK

on the podcast this week: the results of a major Harvard study on how to eat. In addition, a controversial new trend in the way some divorced parents raise their children. Finally, the war on the labeling of the Government cigarettes and junk food. Click below to listen.

As of usually, our panel includes Belinda Luscombe, editor at large of TIME magazine and a regular contributor Healthland; Sora Song, the Healthland editor; and host John Cloud, senior writer at TIME and Healthland.

You can follow us on Twitter @JohnAshleyCloud, @sora_song and @youseless. (Listeners are invited to propose new Twitter handles for Ms. Luscbome!)

links for current segments:

Exhibit Sora on new diet recommendations, the more New England Journal of Medicine paper.

A gallery of new tobacco warning labels. And a piece of NPR Shots blog labeling junk food.

Field Notes:

-Stress and the city: how urban life changes your brain

-Do improve ovulation gaydar

-The wolf hunting in Idaho

the podcast is a work in progress, so please send your suggestions and comments to john_cloud@timemagazine.com

Dieters are a target group: they calculate the calories, sugar and fat content and conscientiously ask for dressing on the side. Right? University of South Carolina; Beth Vallen, assistant professor of marketing at Loyola University Maryland; and Stefanie Rosen Robinson, a graduate student at the University of South Carolina, in a statement [PDF]. "Thus, dieters are likely to assume that a given element an unhealthy name (for example, pasta) is less healthy than an item assigned a healthy name (for example, salad), and they do not spend time considering other product information that might impact their product evaluations "

given the pervasiveness of health products lime currently on store shelves - marketed chips as milkshakes sold as "smoothies", sugary drinks repositioned as "flavored water" "vegetable chips." - which could lead to much confusion, the authors

( More about TIME.com: "Why Obese People watching makes us want to eat more, not less")

In a series of experiments, the researchers asked participants - some who have dieting, some not -. to assess the relative safety and flavor of food, and measured these assessments against how many people consumed in one experiment, people were asked to imagine the command from a lunch menu and evaluate their health status or the "daily special salad" or the "daily special pasta" was. They were given a list of ingredients and photos of the dishes, which were in fact exactly the same - both contained romaine lettuce, diced tomatoes, onions, red peppers, pasta shells, salami, mozzarella cheese and a vinaigrette salted herbs. Both totaled 900 calories, with 60 grams of fat. The only difference is that one called a salad, and one pasta.

The label alone was sufficient to influence the diet "- but not nondieters' - Notes. When the product was called pasta, dieters were judged significantly less healthy than nondieters did. Interestingly, however, when it was given the name of "healthy" salad, it led to no difference in ranking between the two groups. (But, overall, dieters believed the same dish, when called salad was healthy.)

because dieters tend to be more sensitive to certain names of foods taboos - such as pasta, ice cream, chips and sweets - that people are not constantly watch their weight, and are more motivated to avoid. On the other hand, however, their judgment healthy food sounding no different from nondieters'. So the strategy of the typical diet is not necessarily to eat more good food, but rather to prevent disappointments.

( More on TIME.com: "Health-Washing :? Is" Healthy "Fast Food for Real")

Why are nondieters not as easily fooled by product labels? The authors write:

It is important to note here that we do not believe that the odds of nondieters reason are immune to the impact of the food name is that these people tend to assess food more consistently than the diet. In fact, we believe that the reason why the product name does not affect the nondieters assessments is that they have no motivation to spontaneously assess food safety or implicit associations between certain categories of food and healthfulness that dieters do.

In other words, people who are not concerned about the weight loss simply care less about that stuff.

In another experiment, dieters and nondieters were asked to assess the safety and flavor of acid Jelly beans Jelly Belly - presented as "fruit chews" or not only "candy Mash." the dieters more likely to evaluate chewing sweets as less healthy and less tasty than nondieters do, but, ironically, they ate more snack when he was named fruit chew.

( More on TIME.com: "Can pregnant mother feeding a future influence of the weight of the child")

appears that dieters are so busy to avoid a long list of "forbidden" foods they are failing to take note of what really matters: product ingredients, not marketing hype

The study was published in Journal of Consumer Research .

Eating white flesh fruits like apples and pears was associated with a significant dip in the risk of stroke, is a large new study by Dutch researchers.

Although recent studies have touted the brightly colored fruits and vegetables as the healthiest - sweet potatoes orange, green cabbage and bright blueberries, for example - he was humbly the apples and pears in pale flesh that came out as the big winners in the new study.

The researchers analyzed data on more than 20,000 men and women aged 20 to 65 who were healthy and free of cardiovascular disease at baseline 10 years. Based on questionnaires completed by the participants, the researchers tracked their consumption of fruits and vegetables by color: green (broccoli, kale, spinach and other leafy greens), orange / yellow (citrus fruits, carrots, peaches), red / purple (tomatoes, beets, cherries) and white (apples, including applesauce, pears, bananas, cauliflower, cucumber, chicory).

LIST: 5 Healthy Alternatives to Potato chip

Overall, the white category was the most widely consumed time color groups this represents 36% of all products consumed. The most common foods in this group were apples, pears and applesauce.

The researchers followed the participants for a decade, logging the number of people suffered strokes. There were 233. When the rate of stroke was compared with the participants' diet, the researchers found no association with the amount of fruit and brightly colored vegetables they ate, a bit of a surprise being as the phytochemicals that lend their color these foods have been linked to heart health and a lower risk of cancer.

The participants who consumed 171 grams of daily whitefish products, however - the equivalent of a medium to large apple - were 52% less likely to have suffered a stroke than people who ate less than 78 grams of white goods. Overall, 25 grams of white fruit consumed each day, participants saw a 9% reduction in the risk of stroke.

It is unclear why white fruits can be associated with such a dramatic effect on stroke and the authors cautioned that the results need to be replicated before making specific recommendations on white fruits. But it is known that diets rich in fiber - found in apples and pears - contribute to overall cardiovascular health. And as Tara Parker-Pope's Well blog notes: "The fruits also contain a number of nutrients and phytochemicals, including flavonols quercetin, which may have anti-inflammatory properties."

PLUS $ 5 Friday: How to eat healthy for five bucks a pop

As other research based on self-reported questionnaires, the the study is limited by the potentially faulty memories people about what they ate. However, the study was large and the population based and tends to support some widely accepted nutritional advice :. Eating fruits and vegetables is good for your health

The study was published Thursday in Course :. Journal of the American Heart Association and was funded by grants combined Dutch and European public health agencies and the Council of Dutch horticultural products

Meredith Melnick is a journalist TIME . Find her on Twitter at @MeredithCM. You can also continue the discussion on TIME Facebook page and on Twitter at @TIME.

products without gluten are all the rage these days, but many health-conscious eaters who buy them can waste their money, the authors of a new review in Annals of Internal Medicine suggest.

Going is necessary for people with celiac disease, an autoimmune condition triggered by gluten, found in wheat, barley and rye gluten. The disease causes inflammation in the small intestine and can lead to malnutrition.

Yet many others without celiac disease have also adopted gluten-free lifestyles - no doubt partly inspired by athletes and celebrities like Gwyneth Paltrow and Victoria Beckham - in the hope of lose weight, increase energy and resolve a number of potentially related to gluten symptoms such as diarrhea, bloating, gas, headaches, ADHD and mouth sores.

Many of the adopters were diagnosed by their doctors with "nonceliac gluten sensitivity," a condition that, according to some estimates affects up to 18 million Americans. But the authors of the commentary, researchers coeliacs Dr. Antonio Di Sabatino and Dr. Gino Roberto Corazza University of Pavia in Italy, a question that figure, noting that there is no official data on the prevalence of gluten sensitivity nonceliac, nor is there a consensus among doctors about how to diagnose. Unlike celiac disease, which can be identified through blood tests and biopsies of the bowel, there is no good test to determine sensitivity gluten.

What there is, however, is a lot of hype surrounding the supposed benefits of eating gluten-free. These allegations "seem to increase daily, without adequate scientific support to back them up," write authors. gluten foods - pasta, bread, baked goods and breakfast cereals - can actually be sensitive to the other in wheat flour or other ingredients in food something the authors suggest it is. also possible that some people develop gastrointestinal symptoms or other simply because they believe they are sensitive foods.

This is not to say that there is no sensitivity gluten nonceliac. But the authors say that more clinical research is needed to help identify and prevent a "gluten concern to evolve in the conviction that gluten is toxic for most of the population."

in the meantime, until the researchers include the best way to diagnose gluten sensitivity, the authors discourage people from cutting gluten completely, which could lead to a diet lacking in fiber - and put serious dent in your wallet - and suggests that doctors use a "food challenge", a test in which a patient drinks a beverage gluten to see if symptoms occur, to help identify probable cases of sensitivity.

Parents hate to hear that their children are fat. It is much more difficult for doctors to use the term 'overweight'.

But even suppliers that have mastered the art of tactfully inform parents that Junior must slim down may not share this information with parents.

( PLUS : Q & A: Losing weight does not help obese girls love Themselves - Can parents)

The percentage of doctors telling parents that their children are overweight has increased in the last decade, but not enough do -. or they are apparently not communicate in a way that is sinking into

"Parents might be more motivated to follow healthy eating advice and activity if they knew their children were overweight, but very little overweight parents of children say they have never heard that from their doctor, "said Eliana M. Perrin, lead author of the study and associate professor of pediatrics at North Carolina University at Chapel Hill (UNC) School of Medicine, in a statement.

Researchers at the UNC looked at 4,985 children aged 2 to 15 who had a body mass index (BMI) at or above the 85th percentile; Data on children were collected between 1999 and 2008 as part of a national survey.

In 1999, only 19% of parents called a doctor to inform them that their child was overweight. In 2008, this had grown to 29%, which was a step in the desired direction. Yet only 58% of the very obese parents of children reported hearing the news from a doctor.

( PLUS : Childhood Obesity: Most US schools do not require PE Class or Recess)

Why are not more doctors having this conversation ? Undoubtedly, some prefer to avoid what could not help but be an unpleasant exchange. Yet it is hard to imagine a doctor ignoring a risk factor more prevalent for unhealthy results: researchers estimate that in three American children are overweight

doctors assuming approach the subject, the key to the motivation of parents and not alienating is sensitive language, according to September 1 study Pediatrics which revealed that mom and dad grind teeth if they hear their beloved described as "chubby" or "fat" or "obese". parents prefer that doctors simply raise the question of the weight of the child, using terms such as "high BMI" or "overweight".

"Many people find the" fat "as pejorative term and judgment," says Rebecca Puhl, lead author of the study and director of research at the Rudd Center for Food Policy and Obesity at . Yale University "much of the time, suppliers have positive intentions, but the language they use can be seen as blaming, accusatory and not useful."

MORE Outrage on Vogue test by a mom who put his 7-Year-Old on a diet

As you can guess, David Kirchhoff knows a thing or two about weight control. After all, he is the CEO of Weight Watchers International (WW), the largest weight loss program in the world. More than 1 million people in some 25 countries attending meetings WW each week, and 2 million participate online.

But what you might not expect is that the 6-ft.-3-in., 200 lb. Kirchhoff has struggled with her weight for years. In his new inspiring book, Boss weight loss charismatic leader of WW tells its own story and offers countless tips for weight-challenged readers. We caught up with Kirchhoff, 45, shortly after his daily training.

Healthland: In your book, you are remarkably honest about your own weight challenges. Was it difficult to be as open
Kirchhoff: At first it was. When I started writing the man meets the scale blog, every time I wanted to write a post where I expose a new part of myself, I quickly found myself second guessing: is this something I want really put out there, both as a person and the CEO of a large company? But I decided that regardless of personal risk, I felt would be worth it, because I think it is important for obese people to know they are not alone.

You write in your first year at Duke, you "specialized in smorgasbord" and gained 45 pounds. How did this happen?
I would it was a combination of all-you-can-eat cafeteria food and beer and pizza. and fast food on top [of that] and eat a bag of chips. Just kind of unbridled consumption. Ironically, the weight that I put on the back in college made me feel like I was looking more normal, instead of being too thin. [Kirchhoff was 170 lbs. in high school.] It was not really until after college that I continued to gain weight and found myself in the territory of clinical obesity

( PLUS Study: 20% "fat tax" would improve public health).

in the book, you describe going to a doctor in 1999 and discover that you weigh 242 lbs. what effect did it have on you?
I wanted to vomit. I felt physically sick. Getting the job of returning blood was even more shocking. [Kirchhoff found out that his cholesterol was dangerously high.]

You hit your goal WW there three years. What does this mean to you? I then became - like many people - worried how I would keep this course. How will I maintain that loss? That's when my education really began to change my behaviors and habits once and for all.