MSG has long been a contentious ingredient. It is often vilified, as a lot of people believe that they are allergic to the stuff. Recently, though, MSG has had its reputation partially restored as it is thought to be a source of Umami, the much-heralded fifth taste.

A new study has raised the possibility that MSG might once again losing its good standing. A group of scientists have recently finished a study linking MSG to higher body weight. They found that "high MSG consumption was associated with a 110 per cent increase in the risk" of having a high body mass index (BMI).

Industry groups immediately responded, essentially saying "no way Jose." The Glutamate Association said that on top of flaws in the study, areas of the world that already consume large amounts of MSG do not have high BMI numbers (which would indicate they were overweight). What do you think about the new findings?

We've heard this for years about all kinds of black and green teas - not just Oolong - but now there seems to be even more medical evidence that it's true: drinking tea can help you lose weight.

Not to get all technical, but it seems that the polyphenol compound in tea enhances the function of fat metabolism, which helps you lose weight. Researchers in China have been studying this for five years, paying special attention to how it affects kids. And Oolong seems to work the best.

I wonder if the obesity-fighting is hurt if you add a lot of milk and sugar?

To say that the awareness campaign against childhood obesity has been a big one is something of an understatement. There are healthy vending machines getting put into schools, students' BMIs are getting put on report cards and junk food ads have been banned from many televisions. But despite all efforts, there hasn't yet been a noticeable change in the way children eat or a reversal of the trend towards obesity.

A new study illustrates the fact that the impact of all such measures has been minimal. Kids snack more than other age groups, with the average 5-9 year old child consuming $114 worth of candies and sugary treats, $30 of ice cream and $58 of salty snacks each year. "Tweens," the next age group up, consume "40 percent more carbonates per capita than the population average." The same study found that kids are exercising less than ever before, as well, leading to their prediction that childhood obesity rates (including both "overweight" and "obese") will move up from the current 32% to 42% by 2011. European kids aren't too much better off with rates around 35%.

The advice for a turnaround - eat less, exercise more - still stands, but unless something motivates a change, it doesn't look like there will be a radical decrease in the near future.

Obesity in Britain, as it is in the US, is often referred to as an epidemic due to the quickly expanding waistlines of so many in the country. The Department of Health puts the number of overweight or obese people in Britain at 24.6 million, or around 40% of the total population, and they expect to see numbers increase over the next decade. People in the US are slightly healthier than they were lest year, in part because of trends towards healthier eating (even though we are still seeing a tremendous amount of very unhealthy food out there), but this same trend is not noticeable in the UK, according to a new study.

This study, which surveyed more than 12 million consumers about their shopping habits over the past four years, found that only 8% of Britons made an effort to buy healthier, more nutritious foods, such as organic products and "food with labels such as fresh, lite or low fat." 44% of British shoppers had made no effort to buy healthier foods, sticking with "value or extra-value lines" of products." Interestingly, there wasn't much difference in price between the baskets of the healthy shoppers and those who opted for cheaper, less nutritious foods. The healthy baskets cost an "average of £71.78compared with £71.18 for an unhealthy one," which means that most shoppers were buying what they perceived as value at a cost to their health and without saving anything in their wallets.

One is every five calories in the American diet comes from a liquid and the biggest component of that set of liquids is soda. Groups of researchers are now working to prove that such sugary drinks are the leading cause of obesity. This isn’t to say that there aren’t other factors at play here, including genetics and overall health, but if soda is reliably shown to be one of the largest contributing factors it could radically change the soda market. Some scientists working on the project hope to see warning labels on cans of soda that are similar to the warnings on cigarette packages.

Others believe that it will be difficult, if not impossible, to prove this theory. Obesity has only recently been considered a disease and it is a disease with a plethora of diverse symptoms and causes. Pinpointing one factor at this stage may not be realistic. This is especially true if researchers really hope to model their campaign against the “empty calories” of soda on the campaign against tobacco products, which took decades to achieve results.

UK Conservative leader David Cameron spoke out today against the scourge that is single-handedly sending U.K. obesity rates through the roof: half-priced chocolate oranges. The ones sold by W.H. Smith, especially. Oh, and cut-rate giant chocolate bars sold in train stations.

With so many researchers and standards boards getting all technical on our oversized butts by blaming high fructose corn syrup and transfatty acids, and U.S. schools cracking down on vending machines and bake sales, it's good to see someone has it all figured out: chocolate oranges. That's the culprit!

I feel so much better now that the crisis has been solved.